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1. |
In a triangle ABC, ∠ABC = 75° and ∠ACB = $$\frac{{{\pi ^c}}}{4},$$the circular measure of ∠BAC is? |
A. | $\frac{{5\pi }}{{12}}$$radian |
B. | $\frac{\pi }{3}$$radian |
C. | $\frac{\pi }{6}$$radian |
D. | $\frac{\pi }{2}$$radian |
Answer» C. $\frac{\pi }{6}$$radian | |