Question

A hemisphere of lead of radius 7 cm is caused into a right circular cone of height 49 cm find the radius of the base

Answer 1

Dimensions of Hemisphere:

r =7cm

Dimensions of cone:

h = 49cm

radius = R

ATQ

Vol of hemisphere = Vol of cone

2\3πr^3 = 1\3πR²h

(7)^3 = R² * 49

343\49 = R²

R = √7

R = 2.64cm

Please mark it as the brainliest.