Surface Area of Rectangular Prisms Practice

Answer 1

1. Find the surface area of a rectangular prism with dimensions 5 cm by 3 cm by 2 cm.

Solution:
Surface area = 2lw + 2lh + 2wh
= 2(5)(3) + 2(5)(2) + 2(3)(2)
= 30 + 20 + 12
= 62 cm²

Therefore, the surface area of the rectangular prism is 62 cm².

2. Find the surface area of a rectangular prism with dimensions 8 in by 4 in by 6 in.

Solution:
Surface area = 2lw + 2lh + 2wh
= 2(8)(4) + 2(8)(6) + 2(4)(6)
= 64 + 96 + 48
= 208 in²

Therefore, the surface area of the rectangular prism is 208 in².