12-11-2021 Answers

 1. The ratio between the breadth and perimeter of a rectangle is 2:10-> 12 cm

2. The length and breadth of a rectangular field are in the ratio 5:3-> 80m

3. If the radius of a circle is increased by 20% then the area is increased by-> 44%

4. The radius of a sphere is 3.5 cm. Find its surface area-> 154 sq.cm

5. A cylindrical container has a base area of 15 sq.m-> 500

6. A hollow iron pipe is 28 cm long and its external diameter-> 5940

7. The length of rectangle is 24cm which is 10cm more than diameter of circle-> None of these

8. A square garden has 15 posts along each side at equal interval-> 56

9. A boat is tied to one corner of a square bank-> 19.6

10. A triangle is made from a thread. The sides of the triangle are 28cm-> 324 sq.cm

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