Solve the following equation for h.
S = 21r++2arh
help me

Answer:
h = (S - 2πr^2) / 2πr
Step-by-step explanation:
2πr^2 + 2πrh = S
2πrh = S - 2πr^2
2πrh / 2πr = (S - 2πr^2) / 2πr
h = (S - 2πr^2) / 2πr