# Lesson Worksheet: Volumes of Composite Prisms Mathematics • 7th Grade

In this worksheet, we will practice finding volumes of composite prisms.

**Q3: **

The solid shown is formed from two rectangular prisms. Work out the volume of the solid.

- A800 unit
- B1,200 unit
- C880 unit
- D720 unit
- E1,040 unit

**Q6: **

The solid shown is formed from two congruent triangular prisms placed together with a rectangular prism cut out along its length. Work out the volume of the solid.

**Q7: **

Work out the volume of the prism shown.

- A60 unit
- B48 unit
- C120 unit
- D180 unit
- E96 unit

**Q8: **

Work out the volume of the trapezoidal prism shown.

- A216 unit
- B48 unit
- C108 unit
- D96 unit
- E72 unit

**Q9: **

A sphere with a volume of cm^{3}
is placed inside a cube. Given that it touches all
six of the cube’s faces, find the volume of the cube.

**Q10: **

Find the edge length of the smallest cube in which a sphere of volume cm^{3} fits.