Question

PLEASE help me answer this question!!!!

Answer 1

`(77\pi )/(3)` cm³

Explanation:

The volume (V) of a sphere is calculated as

V =
`(4)/(3)`πr³ ( r is the radius )

Here diameter = 4 cm , hence r = 4 ÷ 2 = 2 cm

V =
`(4)/(3)`π × 2³ =
`(4)/(3)`π × 8 =
`(32\pi )/(3)` cm³

Thus

combined volume =
`(32\pi )/(3)` + 15π =
`(32\pi )/(3)` +
`(45\pi )/(3)` =
`(77\pi )/(3)` cm³