Volume of prisms and pyramids

Answer Key - Grade 7 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. 1.

   Ari's gift box is 3.5 in long, 2 in wide and 4 in tall, built from layers 1 in tall. The ribbon is extra curly. What is its volume in cubic inches?

   28
2. 2.

   Bo's lunch box is 6 in long, 2.5 in wide and 4 in tall, built from layers 1 in tall. It rattles a little. What is its volume in cubic inches?

   60
3. 3.

   Kira's toy ramp is a prism 6 in long. Its end is half of a rectangle 12 in by 5 in. A toy car is warming up. What is its volume in cubic inches?

   180
4. 4.

   Luz's toy ramp is a prism 4 cm long. Its end is half of a rectangle 4.5 cm by 6 cm. It looks fast. What is its volume in cubic cm?

   54
5. 5.

   Milo's snack wedge is a prism 7 cm long. Its end is half of a rectangle 3 cm by 4 cm. It disappears at snack time. What is its volume in cubic cm?

   42
6. 6.

   Tala's model recycling bin is a prism 3.5 in long. Its end is a trapezoid: parallel sides 6 and 3 in, height 4 in. It is tidy. What is its volume in cubic inches?

   63
7. 7.

   Ari's pyramid tent has a base of 27 square ft and is 4 ft tall. Three of these pyramids fill the matching prism. The marshmallows are waiting. What is its volume in cubic feet?

   36
8. 8.

   Esme's cheese wedge is a prism. Its end is half of a rectangle 9 cm by 12 cm, with slanted side 15 cm. Mice approve. What is its end's area (one layer) in square cm?

   54
9. 9.

   Jun's toy ramp is a prism. Its end is half of a rectangle 20 cm by 15 cm, with slanted side 25 cm. Zoom zoom. What is its end's area (one layer) in square cm?

   150
10. 10.

    Kira's toy ramp is a prism. Its end is half of a rectangle 0.9 cm by 1.2 cm, with slanted side 1.5 cm. Wheels ready. What is its end's area (one layer) in square cm?

    0.54