Question

The outer diameter of a sphere is 10cm and the inner diameter is 9cm . Find thr volume of metal contained in the shell.

Answer 1

refer to the attachment

Answer 2

Hey mate...

Here is your correct answer...

Hope this will help you.....

Outer diameter of sphere = 10 cm.

Radius = 10/2

= 5 cm.(R)

Inner diameter of sphere is 9 cm.

Radius = 9/2

= 4.5 cm. (r)

So,

Volume = 4/3 pie R^3 - 4/3 pie r^3.

= 4/3 × 22/7 [ (5)^3 - (4.5)^3 ]..

= 4/3 × 22/7 ( 125 - 91.125)

= 4/3 × 22/7 × 33.875

= 142 cm ^3 ( approximately).....

So, the volume of sphere= 142 cm^3..

( approximately)....

Don't forget to mark as a brainliest....

Plzz plzz plzz plzz plzz ☃️☃️..