Volume of prisms and pyramids

Answer Key - Grade 7 Math Worksheet - Challenge Me

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

1. 1.

   Bo's toy ramp is a prism with a volume of 240 cubic inches. Its end is a triangle: base 12 in, height 5 in. It looks fast. How long is the prism in inches?

   8
2. 2.

   Esme's camping tent is a prism with a volume of 108 cubic feet. Its end is a triangle: base 6 ft, height 4 ft. It is very cozy. How long is the prism in feet?

   9
3. 3.

   Kira's pyramid tent has a volume of 24 cubic feet and a base of 6 ft by 4 ft. It sleeps three. How tall is it in feet?

   3
4. 4.

   Pia's pyramid tent has a triangle for a base: base 8 cm, height 3 cm. It is 9 cm tall. Snacks await. What is its volume in cubic cm?

   36
5. 5.

   Ren's model house is a box 10 cm long, 6 wide and 5 tall. Its triangle roof is 4 cm high. The windows are painted on. What is its total volume in cubic cm?

   420
6. 6.

   Tala's doghouse is a box 4 ft long, 3 wide and 2.5 tall. Its triangle roof is 2 ft high. It has a bone sign. What is its total volume in cubic feet?

   42
7. 7.

   Zee's playhouse is a box 8 ft long, 6 wide and 6 tall. Its triangle roof is 4 ft high. The door is just the right size. What is its total volume in cubic feet?

   384
8. 8.

   Bo's play tent is a box 6 ft by 6 ft by 3 ft with a pyramid roof 4 ft high. The roof comes to a point. What is its total volume in cubic feet?

   156
9. 9.

   Esme's model house is a box 12 cm by 12 cm by 9 cm with a pyramid roof 8 cm high. A chimney peeks out. What is its total volume in cubic cm?

   1680
10. 10.

    Luz's lunch box holds 64 cubic inches. Luz makes its width 1/4 as long. It holds one cracker. What is its new volume in cubic inches?

    16