Question

a solid piece of iron of dimension 19*33*24 cm3 is moulded into a sphere. the radius of sphere is what?

Answer 1

Let the radius of the sphere be R cm.

Dimension of the cuboid = 49 cm × 33 cm × 24 cm.

Volume of cuboid = 49 × 33 × 24 cm3 = 38808 cm3

Volume of sphere

Since, the solid piece of iron in the cuboidal form is moulded into a sphere,

∴ Volume of sphere = Volume of cuboid
thus,the area of cuboid is21cm



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