Surface Area - Unwrapping a Cylinder

Interact with the applet, observe what happens as we unwrap the cylinder and answer the questions below.

1.

What shapes are created? How many of each?

2.

Connect the length and the width of the rectangle with the measurements of the cylinder. You may need to unwrap the cylinder a few times. Hint: There is a connection to the circle at the base...

From the Formula Sheet

From the Formula Sheet

Connecting

The image above shows the formula for the surface area of a cylinder. Make a connection between this formula and the unwrapped cylinder.