Question

A cone is 8.4 cm high and the radius of it's base is 2.1 cm . It is melted and recast into a sphere . Find the radius of the sphere​

Answer 1

Answer:

Volume of cone = Volume of sphere

1 / 3π(2.1)2 × 8.4 = 4 / 3 πr3

⇒ r3 = (2.1)2 × 8.4 / 4 = (2.1)3

⇒ r = 2.1 cm

∴ Radius of the sphere = 2.1 cm

here is your answer please follow me