Question

A well 14m deep in 2m in radius the cost of cementing the inner curved surface area at the rate of $2 per square metre is​

Answer 1

Step-by-step explanation:

the height of a well = 14 m

and the radius of well = 2 m

the inner curved surface area= 2πrh

= 2×22/7×2×14

= 44m^

the cost of cementing the inner curved surface area at the rate of Rs.2 per m^ = 44× = Rs.88