1. Assorted Trig Topics
Accelerated Math 3

2. Coterminal Angles Angles which have the same initial
(starting) and terminal (ending) sides.
To find coterminal angles, think about
going around the Unit Circle….
Ex. Find a coterminal angle for 90º

3. Ex. Find two coterminal angles, 1 pos. and 1 neg. for the given angle.
b) θ =

4. Complementary: Supplementary: Two positive angles whose sum is 90º

5. Ex. Find…. 2. a) Complement to 65º b) Supplement to 188º
c) Complement to
d) Complement to

6. Reference angle: The acute angle formed by the terminal side of and the horizontal axis.

7. 3. Determine the reference angle for each of the following angles.