A SOAK WELL 25 CM THICK WHOSE INNER DIA IS 150CM AND DEPTH IS 600 CM.HOW MUCH CUM BRICK WORK REQUIRE FOR THIS SOAK WELL CONSTRUCTION.

A soak well 25 cm thick whose inner dia is 150cm and depth is 600 cm.How much cum brick work require for this soak well construction?

Answer:
inner length=[{3.14(inner dia+outer dia)}/2] =[{3.14x(150+200)}/2]=549.5cm=5.495m
brick work needed=5.495x0.25×6=8.24cum.