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alina1380 [7]
3 years ago
6

Which quadrant contains -11pi/18 and what is the reference angle?

Mathematics
1 answer:
vekshin13 years ago
6 0

Answer:

Option 1 is correct.

Step-by-step explanation:

Given angle \frac{11\pi}{18}. we have to find the quadrant and the reference angle.

Angle given is \frac{11\pi}{18} i.e \frac{11}{18}\times 180^{\circ}=110^{\circ}

Hence, the angle is 110° lies in second quadrant.

Now reference angle, the smallest angle that you can make from the terminal side of an angle with x-axis.

which is \pi-\frac{11\pi}{18}=\frac{7\pi}{18}

Hence, option 1 is correct.

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