Question

a cylinder of radius 12cm contain water upto the height of 20 CM a spherical iron ball is dropped into the cylinder and Thus water level raised by 6.75 cm what is the radius of the ball

Answer 1

Answer:

Step-by-step explanation:

rise in level of water= volume of ball

πr²h=πR³

6.75*12*12=4/3*R³

972=4/3R³

R³=729

therefore,

R=9cm