Question

5. A rectangular piece of land measures 0.7 km by 0.5 km. Each side is to be fenced with 4 rows of

wires. What is the length of the wire needed?

6. Find the perimeter of each of the following shapes:

(a) A triangle of sides 3 cm, 4 cm and 5 cm.

(b) An equilateral triangle of side 9 cm.

(c) An isosceles triangle with equal sides 8 cm each and third side 6 cm.

7. Find the perimeter of a triangle with sides measuring 10 cm, 14 cm and 15 cm.

8. Find the perimeter of a regular hexagon with each side measuring 8 cm.

9. Find the side of the square whose perimeter is 20 m.

10. The perimeter of a regular pentagon is 100 cm. How long is its each side?

11. A piece of string is 30 cm long. What will be the length of each side if the string is used to form:

(a) a square (b) an equilateral triangle (c) a regular hexagon?

12. Two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is the

third side?

13. Find the cost of fencing a square park of side 250 m at the rate of ` 20 per meter.

14. Find the cost of fencing a rectangular park of length 175 m and breadth 125 m at the rate of `

12 per meter.

15. Sweety runs around a square park of side 75 m. Bulbul runs around a rectangular park with

length of 60 m and breadth 45 m. Who covers less distance?​

Answer 1

Step-by-step explanation:

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