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प्रश्न
The largest sphere is to be curved out of a right circular of radius 7cm and height 14cm. find volume of sphere?
उत्तर
Given radius of cylinder (r) = 7cm
Height of cylinder (h) = 14cm
Largest sphere is curved out from cylinder
Thus diameter of sphere = diameter of cylinder
Diameter of sphere (d) = 2 x 7 = 14cm
Volume of a sphere = `4/3pir^3`
`=4/3xxpi(7)^3`
`=(1372pi)/3`
= 1436.75cm3
∴ Volume of sphere = 1436.75cm3
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