# Rectangular Area of a Circle

- Author:
- Stuart Fortier

This worksheet will help you discover the area of a circle by approximating the area of a pseudo-rectangle.

**Use the slider to change the number of sections the circle is divided into.**

- How do the area of the red shape and the circle compare to one another?
- As
gets larger, what shape does the red figure approach? - If
could be infinitely large, what shape would the red figure be? - What is the length of the red shape's shortest side?
- What is the length of the red shape's longest side?
- What is the area of the red shape?
- What is the area of the circle?