Question

PLEASE GELP ASAPSelect the correct answer.

Jack knows the surface area of a cylinder and its radius. He wants to find the cylinder's height. He needs to rewrite the formula A
to find the cylinder's height (h) in terms of the cylinder's surface area (A) and its radius (1). Which is the correct formula?
O A R = r + 24/1
B. h=24
OC. h= 4-2
OD. h = 4 9​

Answer 1

D) h = A/2πr - r

Explanation:

A = 2πr(r+h)

A = 2πr² + 2πrh

2πrh = A - 2πr²

h = (A-2πr²)/2πr

=A/2πr - 2πr²/2πr

=A/2πr - r