Bourke High School - Area of a sector
This applet calculates the area of a sector. The two sliders vary the radius and the angle of the sector of a circle.
Use this applet to answer the following questions:
3. For what angle for a sector does the formula for the area of a sector look like the formula for the area of a circle?
4. For any given radius r, what is minimum area of a sector (nearest whole degree)?
Change the values of the angle of the sector and radius of the sector.
See how to find the area of the sector (blue area).