surface of a cylinder

Question

s=2(3.14)rh+2(3.14)r(squared)

solving for h.

Answer 1

Surface area of cylinder = 2∏r(r+h)

S = 2∏r(r+h)

Divide to each side by 2∏r.

S/2∏r = r+h

S/6.28r = r+h

S/6.28r -r = h

h = (S-6.28r^2)/6.28r