## Precalculus (6th Edition) Blitzer

coterminal; $360^o$; $2\pi$
RECALL: (1) Two angles whose initial sides and terminal sides are the same are called coterminal angles. (2) The coterminal angles of a given angle can be found by adding or subtracting multiples of $360^o$ or $2\pi$ to the measurement of the angle. Thus, the missing expressions in the given statements are (in order): coterminal; $360^o$; $2\pi$