The formula for finding the surface area of a right rectangular prism is 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height.
Given the numbers are 2 ft, 3 ft, and 8 ft, we can plug these values into the formula:
Surface area = 2(2)(3) + 2(2)(8) + 2(3)(8)
Surface area = 12 + 32 + 48
Surface area = 92 square feet
Therefore, the correct answer is not listed. The closest option is A. 72 square feet, but the calculated surface area is 92 square feet.
Justify the formula, and find the surface area of the right rectanglar prism using nets or decomposition.
The numbers are, 2 ft, 3 ft, and 8ft.
A. 72 square feet
B. 36 square feet
C. 72 feet
D. 48 cubic feet
1 answer