# Math Help - Parametrizing a surface, then finding area

1. ## Parametrizing a surface, then finding area

Looking for the area of the upper surface of that portion of the sphere x²+y²+z²=4, contained within the cylinder, x²+y²=2y.

I have parametrized it and found the surface area to be $4\pi$.

Does anybody else get the same?

2. Originally Posted by thepongofping
Looking for the area of the upper surface of that portion of the sphere x²+y²+z²=4, contained within the cylinder, x²+y²=2y.

I have parametrized it and found the surface area to be $4\pi$.

Does anybody else get the same?