Question

What is the surface area of the cylinder with height 8 mi and radius 4 mi? Round your answer to the nearest thousandth.

Answer 1

301.593 mm²

Explanation:

surface area of cylinder = 2π r² + 2π r h

where r = radius and h = height

so we have surface area = 2π (4)² + 2π (4) (8)

= 32π + 64π

= 96π mm² (in exact form)

= 301.593 mm² (to one-thousandth of mm)