Question

Do no how to find the answer

Answer 1

Step-by-step explanation:

Volume of sphere = 38808 cm3

Let r be the radius of sphere

Volume of sphere =

πr3

⇒

πr3 = 38808

⇒

×

× r3 = 38808

⇒ r3 =

⇒ r3 =

⇒ r3 = 441 × 21

⇒ r3 = 9261

⇒ r = 21 cm

Surface area of sphere = 4πr2

= 4 ×

× 21 × 21

= 4 × 22 × 3 × 21

= 5544 cm2

Therefore, surface area is 5544 cm2

Answer 2

Step-by-step explanation:

Volume of a sphere= 4/3 πr^3

therefore,

38808=4/3 πr^3

38808*3/4*π=r^3

r cube = 9702*3*7/22

= 441*3*7

=9261

therefore,

r =21