2
QuizMultiple Select

Surface Area of Prisms

Question 2 • Math 7 B (M12 25/26 S2)

Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select three options.

Answer
A
6 feet by 2 feet by 3 feet
B
6 feet by 5 feet by 4 feet
C
7 feet by 6 feet by 4 feet
D
8 feet by 3 feet by 7 feet
E
8 feet by 4 feet by 3 feet

Explanation

For a rectangular prism, surface area is 2(lw + lh + wh). The surface areas are A: 72, B: 148, C: 188, D: 202, and E: 136 square feet. The options greater than 140 square feet are B, the 6-by-5-by-4 prism; C, the 7-by-6-by-4 prism; and D, the 8-by-3-by-7 prism.

AI-written and checked against the verified answer.

Previous
Next