Question

When the diameter of a marble is 42cm find its c.s.a and volume

Answer 1

If diameter of a marble=42cm the it's radius will be 21cm

volume of a sphere=4/3pie r^3 put the value

4/3pie×21×21×21=12348pie cm^3

Answer 2

Answer:

CSA=5544 cm^2

VOLUME=38808 cm^3