Determine a pair of angles (one positive and one negative) in degree measure coterminal to the angle 117°.
A) 297°, -63°
B) 477°, -243°
C) 417°, -183°
D) 234°, 117− °
E) 297°, -243°

Question

Quizplus · Accepted Answer

To find co-terminal angles to 117°, we need to add or subtract 360° multiples. Starting with 117°, we can add 360° to get 477°, which is positive. To get a negative co-terminal angle, we can subtract 360° from 117° to get -243°. So, the pair of angles that are co-terminal with 117° are 477° and -243°. Choice B includes these angles.

Determine a Pair of Angles (One Positive and One Negative)