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ALGEBRA 2C
13.2 – Define General Angles and
Use Radian Measure
NAME: _______________________
BLK: _____ DATE: _____________
1. Draw an angle with the given measure in standard position.
65°
230°
495°
Radian:
Converting Radians and Degrees:
2. Convert the degree into radians.
30°
135°
3. Convert the radian into degrees.

10

5
4
–60°
4. Evaluate the following trigonometric functions without using a calculator. Show work by
drawing a triangle for each problem.
sin 30°
cos 45°
tan 30°
csc 60°
sec 60°
cot 45°
cos

sin
6

csc
4

3
5. Evaluate the following trigonometric functions with a calculator. Round answers to four
decimal places. Remember to change the mode of your calculator.
sin 55°
tan

7
cos 135°
sin
4
5
sec 315°
csc

9
cot 76°
sec
2
3