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Surface Areas and Volumes
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30/06/2021 1:02 pm
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A metallic sphere of radius 4.2 cm is melted and recast into the shape of a cylinder of radius 6 cm. Find the height of the cylinder.
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30/06/2021 1:03 pm
It is given that radius of the sphere (R) = 4.2 cm
Radius of cylinder (r) = 6 cm
Height of cylinder = h
It is given that the sphere is melted into a cylinder.
Volume of Sphere = Volume of Cylinder
∴ (4/3) × π × R3 = π × r2×h.
h = 2.74 cm