Understanding quadrilaterals class 8 worksheets with Answers

In this page we have Understanding quadrilaterals class 8 worksheets with Answers.This worksheet includes Multiple choice question , fill in the blank,True and false, Long answer type questions. Hope you like them and do not forget to like , social share and comment at the end of the page.

Long Answer Type

Question 1.
Find the number of sides of a regular polygon in which each exterior angle has a measure of 40°$
Question 2.
The perimeter of the parallelogram is 38 cm . One of the side is 12 cm, find the other side

Question 3.
Diagonals of the rhombus is 10 cm and 16 cm . What is the area of the rhombus

Question 4.
One of the angle in the parallelogram is 50°. Find the other angles in the parallelogram

Question 5.
In the below figure, the measure of the angle DBC
Understanding quadrilaterals class 8 worksheet

Question 6.
Three angles of a quadrilateral are 50°, 40° and 123°.Find its fourth angle.

Question 7.
In the figure, HOPE is a rectangle. Its diagonals meet at G. If HG = 5x + 1 and EG = 4x + 19, find x

Question 8.
In the given parallelogram YOUR, $\angle RUO = 120^0$ and OY is extended to point S such that $\angle SRY = 50^$. Find $\angle YSR$

Question 9.
The diagonals of a rhombus are 8 cm and 6 cm. Find its side.

Question 10.
Two angles of a quadrilateral are each of measure 75° and the other two angles are equal. What is the measure of these two angles

Fill in the Blank

Question 11.
(i) Diagonals of a rectangle are __________.
(ii)In an parallegram, adjacents angles are _____
(iii)The sum of all exterior angles of a polygon is __________.
(iv)The measure of each exterior angle of a regular pentagon is __________.
(v) The number of sides of a regular polygon whose each interior angle is of 135° is ___

True and False

Question 12.
(i) Diagonals of a rectangle are perpendicular to each other
(ii)All angles of a trapezium are equal
(iii)Every square is a trapezium.
(iv)If diagonals of a quadrilateral are equal, it must be a rectangle.
(v) Every square is a rhombus
(vi) ALl parallelograms are kites but all kites are not parallelogram

Multiple Choice questions

Question 13.
The sum of angles of a concave quadrilateral is
(a) more than 360°
(b) less than 360°
(c) equal to 360°
(d) twice of 360°
Question 14.
The sum of adjacent angles of a parallelogram is
(a) 180°
(b) 120°
(c) 360°
(d) 90°
Question 15.
ABCD is a rectangle .F and E are the mid points of BC and CD respectively. If area of the $\Delta BEF=7cm^2$, then the area of the rectangle ABCD is
(a) 49 cm2
(b) 42 cm2
(c) 56 cm2
(d) 28 cm2
Question 16.
Length of one of the diagonals of a rectangle whose sides are 24 cm and 7 cm is
(a) 25 cm
(b) 20 cm
(c) 26 cm
(d) 35 cm
Question 17.
Which of the following can never be the measure of exterior angle of a regular polygon?
(a) 30°
(b) 36°
(c) 45°
(d) 22°
Question 18.
Understanding quadrilaterals class 8 worksheets with Answers
ABCD is a parallelogram. Find the value of p
(a) 30°
(b) 100°
(c) 60°
(d) 80°
Question 19.
Find the value of q
(a) 30°
(b) 36°
(c) 45°
(d) 70°
Question 20.
Find the value of r
(a) 30°
(b) 100°
(c) 60°
(d) 80°


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