Question

What is the surface area of this cylinder? Use pie = 3.14 and round your answer to the nearest hundredth.

Answer 1

Answer: 855.90 cubic inches

Explanation:

The formula for the surface area is
`S=2\pi r^(2)+2\pi rh`, where r is the radius and h is the height.

We know that h=10, and that the radius = 15.4/2 = 7.7

So the surface area is
`2\pi \cdot 7.7^(2)+2\pi \cdot 7.7 \cdot 10`

We are using 3.14 for pi, so we get:

`2\cdot 3.14 \cdot 7.7^(2) +2 \cdot 3.14 \cdot 7.7 \cdot 10 \approx 855.90`