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.

   Esme's wooden block is 4.5 cm long, 2 cm wide and 3 cm tall, built from layers 1 cm tall. It has been in many towers. What is its volume in cubic cm?

   27
2. 2.

   Jun's cheese wedge is a prism 5 cm long. Its end is half of a rectangle 8 cm by 6 cm. The mice have heard about it. What is its volume in cubic cm?

   120
3. 3.

   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
4. 4.

   Noah's craft box is a prism 3 in long. Its end is a trapezoid: parallel sides 5.5 and 2.5 in, height 4 in. The glitter went everywhere. What is its volume in cubic inches?

   48
5. 5.

   Pia's treasure box is a prism 2 in long. Its end is a trapezoid: parallel sides 4.5 and 1.5 in, height 4 in. It guards one shiny button. What is its volume in cubic inches?

   24
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.

   Zee's castle tower roof has a base of 36 square cm and is 5 cm tall. Three of these pyramids fill the matching prism. Flag up. What is its volume in cubic cm?

   60
8. 8.

   Esme's castle tower roof has a base of 64 square cm and is 9 cm tall. Three of these pyramids fill the matching prism. A tiny flag waves. What is its volume in cubic cm?

   192
9. 9.

   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
10. 10.

    Milo's treasure box is a prism. Its end is a trapezoid: parallel sides 4 and 1 in, height 4 in. Shiny inside. What is its end's area (one layer) in square inches?

    10