Question

Find the volume of a sphere having radius 21cm. ( =





​

Answer 1

Answer:

volume of sphere = 4/ 3π r cube

= 4/3π21*2*21

=2904702

Answer 2

Answer:

38808 cm.

Step-by-step explanation:

we know,

volume of a sphere = (4/3)π r^3

so,

= (4/3) × (22/7) × 21^3

= (4/3) × (22/7) × 21 × 21 ×21

= (4/3) × 22 × 3 × 21 × 21

= 4 × 22 × 21 × 21

= 88 × 441

= 38808 cm.