Mathematics · Mensuration

If the radius of a sphere is increased by 3 cm, its surface area increases by 462 cm 2 . Find the radius of the sphere before the increase. (Take π = 22 7 )

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

4.625 cm

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If the radius of a sphere is increased by 3 cm, its surface area increases by 462 cm 2 . Find the radius of the sphere before the increase. (Take &pi; = 22 7 )