Question 34 Answer and Explanation _ACT September 2017 Asia Form 75A Math Section

Question 34 Answer and Explanation _ACT September 2017 Asia Form 75A Math Section

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34. In the right triangle below, if $\tan{\theta}=\frac{2}{\sqrt{77}}$ , then $\sin{\theta}=$ ?

F. $\frac{2}{9}$

G. $\frac{4}{77}$

H. $\frac{\sqrt{77}}{9}$

J. $1-\frac{2\sqrt{77}}{77}$

K. $\sqrt{1-({\frac{2\sqrt{77}}{77})}^{2}}$

Answer and Explanation

Your Answer is

Correct Answer is F

Explanation