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Math·Geometry and Trigonometry·Right triangles and trigonometry

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For angle A, the value of $\tan A=\frac{\sqrt{3}}{3}$. Which of the following could be the measure of angle A, in radians?
I. $25\pi /6$
II. $53\pi /7$
III. $77\pi /6$

A

I and II only

B

I, II, and III

C

I and III only

D

I only