4. The reference angle for 190 is A. 10° B. 180° C. -10° D. 90°

Mathematics

1 answer:

Nookie1986 [14]2 years ago

3 0

Answer: A

Step-by-step explanation: A reference angle is smallest possible angles that terminal side makes with the x- axis. Since 190 degrees is located i the 3rd quadrant we use the formula 190-180 to find the possible answer and in this case it is A, 10.

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