- Arc length and sector area given radius and angle in degrees
- Arc length with angle in radians
- Sector area with angle in radians
- Area of a triangle (including proof)
- Area of triangle in a circle (two sides are radii)
- Area between chord and circumference
- Lesson includes reminders of using special triangles to find values of sin
http://www.scribd.com/doc/28017360/Core2-Arcs-Sectors-Triangles-080310
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