Question

pls solve my problem. ...... and happy year in advance​

Answer 1

Answer:

solution

Radius of the cylinder = 12 cm

Height of the cylinder = 6.75 cm = height of increased water

Let 'r' be the radius of the spherical iron ball.

Volume of the cylinder = volume of the spherical iron ball

πr²h = 4/3πr³

22/7*12*12*6.75 = 4/3*22/7*r³

3 × 12 × 12 × 6.75 = 4r³

2916 = 4r³

r³ = 2916/4

r³ = 729

r = 9 cm

So, the radius of the spherical iron ball is 9 cm.