We looked at another way to measure an angle instead of degrees. We found that we could describe an angle using the ratio of the arc length to the circle's radius (called a radian). We converted between radian measure and degree measurements (360 degrees = 2 pi radians). We used this fact to create a proportion so that we could determine either the radian measure given the angle in degrees or vice versa.

Use the links below for help/review

https://www.youtube.com/watch?v=UTClXRvws8o

http://www.mathsisfun.com/geometry/radians.html

https://www.khanacademy.org/math/trigonometry/unit-circle-trig-func/radians_tutorial/v/we-converting-radians-to-degrees

HW: Complete WS 13.2 and your 13.2 packet (except for the last page - test prep 13.2)

Use the links below for help/review

https://www.youtube.com/watch?v=UTClXRvws8o

http://www.mathsisfun.com/geometry/radians.html

https://www.khanacademy.org/math/trigonometry/unit-circle-trig-func/radians_tutorial/v/we-converting-radians-to-degrees

HW: Complete WS 13.2 and your 13.2 packet (except for the last page - test prep 13.2)