| Summary: | This lesson introduces radian measure. Work is done on changing from degrees to radians and from radians to degrees. The formula for arc length a = r θ is also introduced in this lesson. The main focus of this lesson is solving first degree trig equations algebraically with the calculator in the radian mode, as well as using exact values for special angles in radians. Solving equations using graphing technology is also covered in this lesson.
After this lesson, you will be able to:
- change an angle from:
- degrees to radians
- radians to degrees
- find the length of an arc of a circle subtended by an angle in radians.
- Solve first degree trig equations in radians using:
- the calculator in the radian mode
- exact values
- graphing technology
- special angles
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