Question

What is the surface area of this rectangular prism?

A. 78 cm2

B. 120 cm2

C. 158 cm2

D. 180 cm2

Answer 1

Remember - the surface area of a rectangle is 2(h x l) + 2(h x w) + 2(l x w).
2(3 x 8) = 2 x 24 = 48
2(3 x 5) = 2 x 15 = 30
2(8 x 5) = 2 x 40 = 80
48 + 30 + 80 = 158. Hope I could help!
rrriok, the house of... idk