Area of Circles
- Author:
- Jacob Orner , Anthony OR 柯志明
What is the area of a circle? Explore with the following applet.
The more parts you break the circle into, the closer the result from the applet will resemble a rectangle. The height of this rectangle will be r, the length of this rectangle will be what?
For the area of a rectangle we multiply the base and the height. Therefore the formula for the area of a circle after simplifying is ___________