Question

Mike used a rectangular prism and two cubes to create a model bench for his class project as shown below.

What is the surface area of the model bench?

A. 850 sq in
B. 800 sq in
C. 750 sq in
D. 700 sq in

Answer 1

surface area = 2(wl + hl + hw)

top section 2(5*25 + 5*25 + 5*5) = 550

lower part = 2(5*5 + 5*5 + 5*5) = 150

150 + 150 + 550 = 850

answer is A