Diameter of a metallic sphere is 6 cm. By melting the sphere of an another circular wire is recasted. If the length of wire is 36 m, find its radius.
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Answer:
Radius = 10 cm
Step-by-step explanation:
Diameter = 6 cm
therefore, radius = 3 cm
volume = 4/3 π r3
Length, that is, the height of the wire = 36 m = 3600 cm
therefore,
volume of sphere = volume of wire
4/3 x π x 3 x 3 x 3 = π x r2 x 3600
therefore,
r2 = 100
and radius = 10 cm!!
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