Question

The surface area, S, of a right rectangular prism with length, l, width, w, and height, h can be found using the formula below. SA= 2( lw + wh + hl) What is the surface area, in square inches, of a prism with a length of 8 inches, a width of 3 inches, and a height of 9inches?

Answer 1

246 in^2

Explanation:

Given data

Length= 8 in

Width= 3 in

Height= 9 in

SA= 2( lw + wh + hl)

substitute

SA= 2(8*3+ 3*9+ 9*8)

SA= 2(24+ 27+72)

SA= 2(123)

SA= 246 in^2

Hence the SA is 246 in^2