Question 21 Answer and Explanation _ACT June 2011 Asia Form 67B Math Section

Question 21 Answer and Explanation _ACT June 2011 Asia Form 67B Math Section

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21. A BMX biker is using a ramp to perform jumps. The ramp is 50 feet long and 20 feet high, as shown in the figure below. The measure of the angle from the ground to the ramp is θ. Which of the following equations must be true about θ?

A. $sin\,\theta\,=\,\frac{20}{50}$

B. $sin\,\theta\,=\,\frac{50}{20}$

C. $cos\,\theta\,=\,\frac{20}{50}$

D. $cos\,\theta\,=\,\frac{50}{20}$

E. $tan\,\theta\,=\,\frac{20}{50}$

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation