Question 1033507
a cylinder well of radius 1m is dug out to a depth of 8m
a)calculate d vol of soil dug out
For a cylinder, {{{Vol = pi*r^2*h}}}
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b)if the soil is used to raise the level of the rectangular floor of room 4m by 12m , calculate to d nearest cm the thickness of the new layer of soil
Vol = 4*12*d
d = Vol/48 meters
1 meter = 100 cm