Answer:
A. 54 pie cm³
Explanation:
height of the cylinder = 6 × radius of one sphere.
= 6 × 3
= 18 cm
as we can see 3 spheres make up the height of one cylinder,
height of one sphere = 6 cm (3 + 3)
with three spheres it becomes = 6 × 3
= 18 cm
- volume of a cylinder =
r² h
=
× (9)² × 18
= 27 × 6
- volume of a sphere = 4/ 3 ×
3³
= 36
volume = 3 × (36
)
= 27 × 4
volume of the empty space
= volume of cylinder- volume of 3 spheres
= 27 × 6
- 27 × 4
= 27
( 6 - 4)
= 27 × 2
= 54
cm³