Question

What is the surface area of the cylinder with height 8 km and radius 7 km? Round your answer to the nearest thousandth.

Answer 1

301.593

Explanation:

surface area = circumference x height + 2 x circle area

= 4 x 2 x π x 8 + 2 x π x 4^2

= 25.1327412287 x 8 + 6.28318530718 x 16

= 201.06192983 + 100.530964915

= 301.592894745 ≈ 301.593