AA 8­2 and 8­3 Notes 2016.notebook
May 15, 2017
Angles can be measured in radians and degrees.
180 degrees = π radians
In radians we will use fractions and the quantity π. No rounding! **Convert ­20 degrees into radians.
Draw the angle and determine its reference angle.
Example: π/4 radians
**Convert 140 degrees into radians.
Example: 5π/3 radians
**Convert (5π)/3 radians into degrees.
Example: 7π/6 radians
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AA 8­2 and 8­3 Notes 2016.notebook
May 15, 2017
Co­terminal angles: Share the same terminal side and have the same reference angle **Find 2 positive and 2 negative co­terminal angles of π/10 radians.
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