A circular pond of radius 7 m is to be surrounded by a grassy path 3 m wide.
MATHEMATICS · Multi-part · CBSE · Mathematics · Areas Related to Circles · Areas Related to Circles
Problem
A circular pond of radius 7 m is to be surrounded by a grassy path 3 m wide.
(i) Calculate the area of the grassy path.
(ii) The grass is laid at Rs 45 per square metre. Find the cost of laying the grass.
(iii) Along the outer edge of the path a bamboo fence is to be fixed. Determine the length of the fence required and its cost if fencing costs Rs 120 per metre.