Question

Help is needed

Answer 1

@toga @oliver69

Answer 2

The formula 2πr(r + h), where r is the radius and h is the height, yields the surface area of a cylinder.
We can enter h = 2r into the formula since the height is twice the radius:
2πr(r + 2r)
Reduce the complexity of the sentence:
2πr (3r)
6πr² 2
Was this any help to you?

Answer 3

The correct answer is D
Explanation: In mathematics, the surface area of the side (also known as the lateral surface area) of a right circular cylinder can indeed be calculated by multiplying twice the number π (pi) by the radius r times the height h. This can be represented by the formula 2πr^h. ( brainly.com )

Answer 4

Thanks dad