Question

Which of the following is the surface area of the right cylinder below? A. 244π units B. 204π units C.869π units D.352π units

Answer 1

Question asks, "Find the surface area of a cylinder."

Answer is: D. 352 pi ✅

Why is that the case? Let's see.

When finding surface area, multiply two times pi times the radius times the height.

`A = 2\pi rh+2\pi r^2`

Now, you need to split these four values into an actual equation.

2 followed by pi radius-height plus two pi radius, is actually the formula for surface added to the formula of area, so;

`2\pi rh+2\pi r^2 = 2 * \pi * 8(radius) * 14 + 2(height~plus~the~two) * \pi * 8^2`

Solve.

the result is 1105 according to order of operations.

Divide 1105 by pi to get the answer. Pi is 3.14... so for every 3.14..., you count that as one.

`1105 / 3.14 = 351.91...` which rounds to 352

Therefore, your answer is 352π units²