A circular well of 21m depth is dug up so that the radius of the well is 1.5m. What is the volume of the earth dug up?
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Height = 21 m
radius = 1.5 m
Volume of circular earth dug up = ?
Volume of circular earth dug up = Volume of cylinder
⇒ Vol. =
r² h
⇒ Vol. = 3 .14 x 1.5 x 1.5 x 21
⇒ Vol. = 3.14 x 2.25 x 21
⇒ Vol. =148.365 m³
radius = 1.5 m
Volume of circular earth dug up = ?
Volume of circular earth dug up = Volume of cylinder
⇒ Vol. =
⇒ Vol. = 3 .14 x 1.5 x 1.5 x 21
⇒ Vol. = 3.14 x 2.25 x 21
⇒ Vol. =148.365 m³
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the circular well is in the form of a cylinder.
volume of earth dug up = volume of cylinder =πr²h
given radius of well = 1.5 m
depth/height of the well = 21
volume of earth dug up = πr²h
= 22/7 ×(1.5)²×21
= 22×2.25×3
= 66×2.25
= 148.50 m³
volume of earth dug up = volume of cylinder =πr²h
given radius of well = 1.5 m
depth/height of the well = 21
volume of earth dug up = πr²h
= 22/7 ×(1.5)²×21
= 22×2.25×3
= 66×2.25
= 148.50 m³
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