Question

A park is in the shape of a semicircle with radius 21 m. Find the
cost of fencing it at the cost of ` 5 per metre.

Answer 1

Answer:

Step-by-step explanation:

Circumference of the semicircle = πr

= 22/7 × 21 = 66

Whole circumference = 66 + (diameter 2r)

= 66+ 42

= 108 mt

Cost of painting

= 5 × 108

= 540 mt

Hope it's helpful.