The base of a right prism is a rectangle with sides 8 cm and 5 cm. The height of the prism is 12 cm. What is the total surface area?
Show answer & explanation
Correct answer: A
Explanation
Base = Rectangle
Length = 8 cm, Width = 5 cm
Height = 12 cm
Total Surface Area = 2(lb + bh + hl)
= 2[(8 × 5) + (5 × 12) + (8 × 12)]
= 2(40 + 60 + 96)
= 2 × 196
= 392 cm²