# Surface area of revolution for an ellipse

1. Mar 10, 2008

### erjkism

1. The problem statement, all variables and given/known data

Find the surface area obtained when the upper half of the ellipse: $$\frac{x^{2}}{4}+ y^{2}=1$$ is rotated about the x-axis

2. Relevant equations
$$\int2piyds$$

3. The attempt at a solution

2. Mar 10, 2008