A well with 14 m diameter is dug 8 m deep. The earth taken out of it has been evenly spread all around it to a width of 21 m to form an embankment. Find the height of the embankment.

Given,

Diameter of well = 14 m

Radius of well =

depth of well = 8 m

so,

Amount of earth dug out from well =

This earth is spread out on width of 21 m.

= Area ×h = 1232

=

=

=

Height of embankment = 53.3 cm