Question

The radius of a copper sphere is 21cm.The sphere is melted and is drawn Into a cuboid of length and breadth as 42cm each .Find its height.

Answer 1

Step-by-step explanation:

Radius of the sphere =21cm

volume of the sphere =4/3πR²

=4/3π21²

=38808cm²

length of cuboid =42

breadth of cuboid =42

Height of cuboid =?

volume of cuboid =lbh

so

volume of cuboid=Volume of sphere

then

42 multiple 42 multiple x=38808

x= 22

then height of cuboid =22

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