Question

Find the surface area of the prism. Write your answer as a decimal.

13.5 in.
9 in.
9 in
10 in.

Answer 1

360 in²

Explanation:

Total SA = 2 triangles + 3 squares

Triangles:

A = bh/2

A = (9 · 10)/2

A = 90/2

45 in²

Squares:

A = bh

A = (9)(10)

90 in²

Total SA: 2(45) + 3(90)

Total SA: 360 in²

I hope this helps!