Area and perimeter class 9 online test

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General Instructions

  • Your test contains multiple-choice questions with only one answer-type question. There are a total of 10 questions
  • This is a 20 min test. Please make sure you complete it in the stipulated time
  • You can finish this test any time using the 'Submit' button.
1. Area of the sector of the circle of radius r cm  having 120 degree angle is given by
2. let a,b,c are the length of the sides of the triangles. R is the radius of  circumcircle, the area of the triangle
3. The heron formula for area of the triangle of sides a,b,c is given by
4. A triangle with sides 3 units, 4 units and 5 units has the area as
5. Calculate the length of the arc of a circle if the radius is 3.5 cm and the angle at the centre is 60o
6. The sides of a triangular plot are in the ratio 3: 5: 7; its perimeter is 300 m. Find its area
7. Find the area of a quadrant of a circle whose circumference is 44 cm.
8. If r is the radius of incircle of triangle of sides a,b,c, then area is given by
9. The wheel of a truck has an outer radius of 28 cm. Calculate how far the truck travels after one complete turn of the wheel?
10. One diagonal of a rhombus is twice as long as the other diagonal. If the rhombus has area 128 cm2, find the length of the shorter diagonal.

 

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