A well with 10m inside diameter meter is dug 14m deep earth taken out of of its spread all around to a width of 5 m to form an enbankment. Find the hight of the enbankment. Also show me how does an enbankment look like ?

Explanation

volume of wall = volume of earth dug out

`pi r^2h=` volume of earth

`V= 22/7 xx (10/2)^2 xx 14`

`= 1100 m^3`

`V = pi(10^2 - 5^2)h = 1100 m^3`

`22/7 (75) xx h= 110`

`h = (50 xx 7)/(75) = 7 xx 2/3 = 14/3m`

Answer