Question

The area of the base of a prism is 50 mm2. The perimeter of the base is 30 mm. The height of the prism is 7 mm. What is the surface area of the prism? mm2

Answer 1

Given:
Base of the prism: 50 mm²
Perimeter of base: 30 mm
Height of prism: 7 mm

The formula of the surface area of a prism is
S.A = 2 × Area of base + Perimeter of base × Height of prism
Plug in the given
S.A = 2 × 50 + 30 × 7
= 100 + 210
= 310 mm²