A well of diameter 3m, is dug 14m deep The earth taken out of it has been evenly spread all around it to a width of 4m, to form an embankment Find the height of the embankment use pi=22/7
The shape of the well will be cylindrical.
Depth (h 1) of well = 14 m
Radius (r 1) of the circular end of well = 
Width of embankment = 4 m
From the figure, it can be observed that our embankment will be in a cylindrical shape having outer radius (r 2) as 
and inner radius (r 1) as.
Let the height of embankment be h 2.
Volume of soil dug from well = Volume of earth used to form embankment
Therefore, the height of the embankment will be 1.125 m.
