Question

PLEASE help me answer this question!!!!

Answer 1

Answer:

$\frac{77\pi }{3}$ cm³

Step-by-step explanation:

The volume (V) of a sphere is calculated as

V = $\frac{4}{3}$πr³ ( r is the radius )

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

V = $\frac{4}{3}$π × 2³ = $\frac{4}{3}$π × 8 = $\frac{32\pi }{3}$ cm³

Thus

combined volume = $\frac{32\pi }{3}$ + 15π = $\frac{32\pi }{3}$ + $\frac{45\pi }{3}$ = $\frac{77\pi }{3}$ cm³