Surface area from a net: prisms and pyramids
Grade 7 Math Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
Sketch, not to scale. Zee's shoebox has no lid. It is 10 in long, 6 in wide and 4 in tall. The lid is lost. How much paper covers its outside, in square inches?
Kira's lunch box is 7 in long, 2.5 in wide and 6 in tall. A label wraps around the four sides only. The stripe is purple. What is the label's area in square inches?
Milo's playhouse roof is a triangular pyramid with a right-triangle base: legs 9 and 12 cm. The tip is 3 cm high. A chimney peeks out. What is its surface area in square cm?
Noah's castle tower roof is a triangular pyramid with a right-triangle base: legs 15 and 20 cm. The tip is 5 cm high. A tiny flag waves. What is its surface area in square cm?
Ren paints the whole outside of a wooden block: 7 cm by 4 cm by 3 cm. It becomes bright blue. How much area does the paint cover, in square cm?
Tala paints the whole outside of a lunch box: 8 in by 3 in by 7 in. Stickers are everywhere. How much area does the paint cover, in square inches?
Ari wants to know how much a gift box holds. It is 6 in by 5 in by 2.5 in. It is a big gift. What is its volume in cubic inches?
Kira's toy block is a cube with edges of 4 cm. Kira makes every edge 3 times as long. It has a golden star. What is its new surface area in square cm?
Luz's storage box is 9 in long, 6 in wide and 4 in tall. Luz makes the height half as tall. A bit squat. What is its new surface area in square inches?
Noah's lunch box is 6 cm long, 5 cm wide and 8 cm tall. Noah makes the height half as tall. Snacks squashed. What is its new surface area in square cm?