{"id":3991,"date":"2026-07-04T12:48:56","date_gmt":"2026-07-04T12:48:56","guid":{"rendered":"https:\/\/physicscatalyst.com\/testprep\/class-8-math\/area-class-8-maths\/"},"modified":"2026-07-04T12:48:56","modified_gmt":"2026-07-04T12:48:56","slug":"area-class-8-maths","status":"publish","type":"post","link":"https:\/\/physicscatalyst.com\/testprep\/class-8-math\/area-class-8-maths\/","title":{"rendered":"Area Class 8 maths"},"content":{"rendered":"<script type=\"text\/javascript\" >\ndocument.addEventListener(\"DOMContentLoaded\", function(event) { \nif(!window.jQuery) alert(\"The important jQuery library is not properly loaded in your site. Your WordPress theme is probably missing the essential wp_head() call. You can switch to another theme and you will see that the plugin works fine and this notice disappears. If you are still not sure what to do you can contact us for help.\");\n});\n<\/script>  \n  \n<div  id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam523\" style=\"display:none;text-align:center;\">Please wait...<br><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-523\"><p><strong>General Instructions<\/strong><\/p>\n<ul>\n<li>Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions<\/li>\n<li>This is a 20 min test. Please make sure you complete it in the stipulated time<\/li>\n<li>You can finish this test any time using the 'Submit' button.<\/li>\n<\/ul>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-523\"  enctype=\"multipart\/form-data\" >\n<div class='watu-question ' id='question-1' style=';'><div id='questionWrap-1'  class='   watupro-question-id-8666'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>1. <\/span>If the diagonals of the rhombus are 18 and 12 cm, Find the area of the rhombus<\/div><input type='hidden' name='question_id[]' id='qID_1' value='8666' class='watupro-question-id'\/><input type='hidden' id='answerType8666' class='answerTypeCnt1' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8666'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8666[]' id='answer-id-34612' class='answer   answerof-8666  ' value='34612'   \/><label for='answer-id-34612' id='answer-label-34612' class=' answer'><span>118 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8666[]' id='answer-id-34613' class='answer   answerof-8666  ' value='34613'   \/><label for='answer-id-34613' id='answer-label-34613' class=' answer'><span>108 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8666[]' id='answer-id-34614' class='answer   answerof-8666  ' value='34614'   \/><label for='answer-id-34614' id='answer-label-34614' class=' answer'><span>128 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8666[]' id='answer-id-34615' class='answer   answerof-8666  ' value='34615'   \/><label for='answer-id-34615' id='answer-label-34615' class=' answer'><span>148 cm<sup>2<\/sup><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-2' style=';'><div id='questionWrap-2'  class='   watupro-question-id-8667'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>2. <\/span>1 in<sup>2<\/sup> =<\/div><input type='hidden' name='question_id[]' id='qID_2' value='8667' class='watupro-question-id'\/><input type='hidden' id='answerType8667' class='answerTypeCnt2' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8667'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8667[]' id='answer-id-34616' class='answer   answerof-8667  ' value='34616'   \/><label for='answer-id-34616' id='answer-label-34616' class=' answer'><span> 6.4516 cm<ssup>2<\/sup>\r\n<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8667[]' id='answer-id-34617' class='answer   answerof-8667  ' value='34617'   \/><label for='answer-id-34617' id='answer-label-34617' class=' answer'><span> 6.25 cm<ssup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8667[]' id='answer-id-34618' class='answer   answerof-8667  ' value='34618'   \/><label for='answer-id-34618' id='answer-label-34618' class=' answer'><span> 6.4518 cm<ssup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8667[]' id='answer-id-34619' class='answer   answerof-8667  ' value='34619'   \/><label for='answer-id-34619' id='answer-label-34619' class=' answer'><span> 6.4526 cm<ssup>2<\/sup><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-3' style=';'><div id='questionWrap-3'  class='   watupro-question-id-8668'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>3. <\/span>Area of a right triangle is 54 cm<sup>2<\/sup>. If one of its legs is 12 cm long, its perimeter is<\/div><input type='hidden' name='question_id[]' id='qID_3' value='8668' class='watupro-question-id'\/><input type='hidden' id='answerType8668' class='answerTypeCnt3' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8668'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8668[]' id='answer-id-34620' class='answer   answerof-8668  ' value='34620'   \/><label for='answer-id-34620' id='answer-label-34620' class=' answer'><span>18 cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8668[]' id='answer-id-34621' class='answer   answerof-8668  ' value='34621'   \/><label for='answer-id-34621' id='answer-label-34621' class=' answer'><span>27 cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8668[]' id='answer-id-34622' class='answer   answerof-8668  ' value='34622'   \/><label for='answer-id-34622' id='answer-label-34622' class=' answer'><span>36 cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8668[]' id='answer-id-34623' class='answer   answerof-8668  ' value='34623'   \/><label for='answer-id-34623' id='answer-label-34623' class=' answer'><span>54 cm<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-4' style=';'><div id='questionWrap-4'  class='   watupro-question-id-8669'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>4. <\/span>A right angle triangle having base=3 cm and height =4 cm. What is the area of the triangle?<\/div><input type='hidden' name='question_id[]' id='qID_4' value='8669' class='watupro-question-id'\/><input type='hidden' id='answerType8669' class='answerTypeCnt4' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8669'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8669[]' id='answer-id-34624' class='answer   answerof-8669  ' value='34624'   \/><label for='answer-id-34624' id='answer-label-34624' class=' answer'><span>7 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8669[]' id='answer-id-34625' class='answer   answerof-8669  ' value='34625'   \/><label for='answer-id-34625' id='answer-label-34625' class=' answer'><span>8 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8669[]' id='answer-id-34626' class='answer   answerof-8669  ' value='34626'   \/><label for='answer-id-34626' id='answer-label-34626' class=' answer'><span>12 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8669[]' id='answer-id-34627' class='answer   answerof-8669  ' value='34627'   \/><label for='answer-id-34627' id='answer-label-34627' class=' answer'><span>6 cm<sup>2<\/sup><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-5' style=';'><div id='questionWrap-5'  class='   watupro-question-id-8670'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>5. <\/span>A trapezium has parallel sides as 6 and 10 cm . The height of the trapezium is 12 cm. Find the area of the trapezium<\/div><input type='hidden' name='question_id[]' id='qID_5' value='8670' class='watupro-question-id'\/><input type='hidden' id='answerType8670' class='answerTypeCnt5' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8670'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8670[]' id='answer-id-34628' class='answer   answerof-8670  ' value='34628'   \/><label for='answer-id-34628' id='answer-label-34628' class=' answer'><span>96 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8670[]' id='answer-id-34629' class='answer   answerof-8670  ' value='34629'   \/><label for='answer-id-34629' id='answer-label-34629' class=' answer'><span>108 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8670[]' id='answer-id-34630' class='answer   answerof-8670  ' value='34630'   \/><label for='answer-id-34630' id='answer-label-34630' class=' answer'><span>92 cm<sup>2<\/sup><\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8670[]' id='answer-id-34631' class='answer   answerof-8670  ' value='34631'   \/><label for='answer-id-34631' id='answer-label-34631' class=' answer'><span>86 cm<sup>2<\/sup><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-6' style=';'><div id='questionWrap-6'  class='   watupro-question-id-8671'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>6. <\/span>The area of a rhombus is 864 sq cm. If one of its diagonals is 54 cm long, what is the length of the other?<\/div><input type='hidden' name='question_id[]' id='qID_6' value='8671' class='watupro-question-id'\/><input type='hidden' id='answerType8671' class='answerTypeCnt6' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8671'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8671[]' id='answer-id-34632' class='answer   answerof-8671  ' value='34632'   \/><label for='answer-id-34632' id='answer-label-34632' class=' answer'><span>16 cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8671[]' id='answer-id-34633' class='answer   answerof-8671  ' value='34633'   \/><label for='answer-id-34633' id='answer-label-34633' class=' answer'><span>18 cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8671[]' id='answer-id-34634' class='answer   answerof-8671  ' value='34634'   \/><label for='answer-id-34634' id='answer-label-34634' class=' answer'><span>36 cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8671[]' id='answer-id-34635' class='answer   answerof-8671  ' value='34635'   \/><label for='answer-id-34635' id='answer-label-34635' class=' answer'><span>32 cm<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-7' style=';'><div id='questionWrap-7'  class='   watupro-question-id-8672'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>7. <\/span>Which has a greater area \u2014 an equilateral triangle or a square of the same side length as the triangle?<\/div><input type='hidden' name='question_id[]' id='qID_7' value='8672' class='watupro-question-id'\/><input type='hidden' id='answerType8672' class='answerTypeCnt7' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8672'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8672[]' id='answer-id-34636' class='answer   answerof-8672  ' value='34636'   \/><label for='answer-id-34636' id='answer-label-34636' class=' answer'><span>square<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8672[]' id='answer-id-34637' class='answer   answerof-8672  ' value='34637'   \/><label for='answer-id-34637' id='answer-label-34637' class=' answer'><span>equilateral triangle<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8672[]' id='answer-id-34638' class='answer   answerof-8672  ' value='34638'   \/><label for='answer-id-34638' id='answer-label-34638' class=' answer'><span>can't say<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8672[]' id='answer-id-34639' class='answer   answerof-8672  ' value='34639'   \/><label for='answer-id-34639' id='answer-label-34639' class=' answer'><span>None of the above<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-8' style=';'><div id='questionWrap-8'  class='   watupro-question-id-8673'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>8. <\/span>A parallelogram has side of 20 cm and corresponding altitude of 15 cm. Find the area of the parallelogram?<\/div><input type='hidden' name='question_id[]' id='qID_8' value='8673' class='watupro-question-id'\/><input type='hidden' id='answerType8673' class='answerTypeCnt8' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8673'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8673[]' id='answer-id-34640' class='answer   answerof-8673  ' value='34640'   \/><label for='answer-id-34640' id='answer-label-34640' class=' answer'><span>300 sq cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8673[]' id='answer-id-34641' class='answer   answerof-8673  ' value='34641'   \/><label for='answer-id-34641' id='answer-label-34641' class=' answer'><span>200 sq cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8673[]' id='answer-id-34642' class='answer   answerof-8673  ' value='34642'   \/><label for='answer-id-34642' id='answer-label-34642' class=' answer'><span>250 sq cm<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8673[]' id='answer-id-34643' class='answer   answerof-8673  ' value='34643'   \/><label for='answer-id-34643' id='answer-label-34643' class=' answer'><span>400 sq cm<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-9' style=';'><div id='questionWrap-9'  class='   watupro-question-id-8674'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>9. <\/span>A regular hexagon is divided into a trapezium, an equilateral triangle, and a rhombus, as shown. Find the ratio of their areas.<br \/>\r\n<br \/>\r\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3990\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/uploads\/2026\/07\/area_class8_maths-fig1.png\" alt=\"\" width=\"122\" height=\"111\" \/><\/div><input type='hidden' name='question_id[]' id='qID_9' value='8674' class='watupro-question-id'\/><input type='hidden' id='answerType8674' class='answerTypeCnt9' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8674'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8674[]' id='answer-id-34644' class='answer   answerof-8674  ' value='34644'   \/><label for='answer-id-34644' id='answer-label-34644' class=' answer'><span>2:1:3<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8674[]' id='answer-id-34645' class='answer   answerof-8674  ' value='34645'   \/><label for='answer-id-34645' id='answer-label-34645' class=' answer'><span>1:2:3<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8674[]' id='answer-id-34646' class='answer   answerof-8674  ' value='34646'   \/><label for='answer-id-34646' id='answer-label-34646' class=' answer'><span>3:2:1<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8674[]' id='answer-id-34647' class='answer   answerof-8674  ' value='34647'   \/><label for='answer-id-34647' id='answer-label-34647' class=' answer'><span>1:4:8<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class='watu-question ' id='question-10' style=';'><div id='questionWrap-10'  class='   watupro-question-id-8675'>\n\t\t\t<div class='question-content'><div><span class='watupro_num'>10. <\/span>If you double the base and height of a triangle, the area becomes<\/div><input type='hidden' name='question_id[]' id='qID_10' value='8675' class='watupro-question-id'\/><input type='hidden' id='answerType8675' class='answerTypeCnt10' value='radio'><!-- end question-content--><\/div><div class='question-choices watupro-choices-columns '  id='questionChoices8675'><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8675[]' id='answer-id-34648' class='answer   answerof-8675  ' value='34648'   \/><label for='answer-id-34648' id='answer-label-34648' class=' answer'><span>2 times<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8675[]' id='answer-id-34649' class='answer   answerof-8675  ' value='34649'   \/><label for='answer-id-34649' id='answer-label-34649' class=' answer'><span>4 times<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8675[]' id='answer-id-34650' class='answer   answerof-8675  ' value='34650'   \/><label for='answer-id-34650' id='answer-label-34650' class=' answer'><span>8 times<\/span><\/label><\/div><div class='watupro-question-choice  ' dir='auto' ><input type='radio' name='answer-8675[]' id='answer-id-34651' class='answer   answerof-8675  ' value='34651'   \/><label for='answer-id-34651' id='answer-label-34651' class=' answer'><span>no change<\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style='display:none' id='question-11'>\n\t<div class='question-content'>\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/physicscatalyst.com\/testprep\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\" \/>&nbsp;Loading...\t<\/div>\n<\/div>\n\n<br \/>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons523\" >\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; Previous\" 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