A well of inner diameter 14 metre is talk to a depth of 12m Earth taken out of it has been evenly spread all around it to a web on 7 m to form an embankment find the height of the embankment so formed
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inner diameter of well = 14m. Radius of well = 14/2=7m. Depth = 12 m. volume of digging Earthen from well. πr^2h= 22/7×7×7×12 m^3. inner radius of embankment (r) = 7m and outer radius (R)=12+7 = 19 m. Let height of embankment =H Volume of embankment = π(R^2-r^2)H.=22/7 ×( 19^2-7^2) H. NOW. 22/7× (361-49)H =22/7×7×7×12. now please solve now
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