Answer
C and D
Work Step by Step
1. To find correct answers we need to ask ourselves. Are we adding or subtracting 360$^{\circ}$? Then if answer is yes, then the answer is incorrect
2. A. 360$^{\circ}$+r$^{\circ}$ and B. r$^{\circ}$-360$^{\circ}$ a
Are coterminal angles, therefore incorrect.
3. C. 360-r$^{\circ}$ not coterminal ,therefor C is correct.
Let's consider angle r= 90$^{\circ}$, then the expression will be equal to 270 which is not coterminal angle of 90$^{\circ}$
4. D. r$^{\circ}$ + 180 definitely not a coterminal, and therefore it is correct.
5. C and D correct
