Question

A well is dug 15m deep and it has a diametre of 12m the earth which is so dug out is spread all around to a widthof 3m to from an embankment find the height of embankment

Answer 1

Answer:

Step-by-step explanation:

Vol of Earth material=π*6*6*15

Vol of embarkment=π*(9*9-6*6)h=π*6*6*15

h =6*6*15*π/45*π=12m

Height=12m