Surface Area- Multivariable Calculus

In this video, I show how to use surface parametrizations to find the surface area of a surface using integration. This is a step towards defining and calculating the surface integral.
00:00 - The theory of surface area
11:01 - Defining the surface area
11:34 - Surface Area example 1
15:53 - Example 2: Surface Area of a sphere
24:49 - Surface Area- Cylinder Example