Question

Shyam lives in a small village.he is a well educated person and a!
ways works for the welfare of his villagers.in his village most of the people are poor.to overcome the problem of pure drinking water he decided to dig a circular well.he paid the money needed to dig the well. The inner diameter of the well was 10m and it was 14m deep. The cost of digging is re 40 per cubic meter.(1) which mathematical concept is involved here? (2) which values are dedicated by shyam?(3)find the volume of the earth taken out to dig the well?

Answer 1

the mathematical concept used here is the volume of cylinder=22/7*r*r*h
the values of radius and depth are dictated by shyam
the volume=
22/7*5*5*14=22*5*5*2=1100cubic meter