Question

what is the radius of cylinders base if it is formed by melting a sphere of radius 7cn when the height of the cylinder is 28/3

Answer 1

Answer:

in this question we know that the sphere is reshaped as cylinder it means that the volume will remain same.

so 4/3 π r³ = πr² h

the pi will cancel out from both sides

so 4/3 (7)³ = r² 28/3

on solving we will get

the radius of cylinder as 7 cm

it is a really important question so revise well.

thanks ;)