Question

A circular grassy plot of land of diameter 42 m has a path of wide 3.5 m running around it on the outside. Find the cost gravelling the path at Rs 4 per square meter​

Answer 1

Answer:

Rs.2002

Step-by-step explanation:

Radius of plot = 242=21m

Radius of plot with path = 21 + 3.5 = 24.5m

Area of plot = 722((24.5)2−(21)2)

                     = 722(600.25−441)

                     = 500.5m2

Cost of gravity = Rs.(500.5×4) = Rs.2002