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Lainey Roth
Mathematics
20 February, 10:09
Are 35° and - 685° coterminal?
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Madilyn
20 February, 10:23
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Answer: YES
Step-by-step explanation:
Coterminal means they are located at the same place on the Unit Circle but are n-rotations clockwise or counterclockwise.
Start with 35° and continue to subtract 360° (which is one rotation) until you reach - 685° or pass it. If you reach - 685°, then it is coterminal. If you pass it, then it is not coterminal.
35° - 360° = - 325°
-325° - 360° = - 685°
So, - 685° is 2 rotations counterclockwise to 35°, which means the two angles are coterminal to each other.
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