Question

ally, Sue, John and Joe were arguing about the formula for the surface area of a cylinder. Which of them were correct?

Answer 1

Given that ally, Sue, John and Joe were arguing about the formula for the surface area of a cylinder.

Let's select the correct formula(s) for the surface area of a cylinder.

Apply the formula for the surface area of a cylinder:

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

Now, let's factorize the formula:

Factor out 2πr:

`SA=2\pi r(h+r)`

Therefore, the correct formula from the list is:

`2\pi r(h+r)`

• ANSWER:

d. 2πr(h + r)