Math, asked by prem48, 1 year ago

A wall 4.2 m in diameter and 10m deep is to be dug. Find the cost of digging the well at Rs 36 per cubic metre.

Answers

Answered by kuhuk1609
6
ans is: 4989.6rs
diameter=4.2m
radius=2.1m
height=10m
volume to be dug out=(pi)r^2h=22/7x2.1x2.1x10=138.6m^3
cost=138.6x36=s.4989.6

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