30-60-90

The longer leg of a 30°-60°-90° triangle measures 5. What is the length of the shorter leg?

Correct answer:

x =  2.5

Step-by-step explanation:

$$\begin{gathered} \sin 30^{\circ }={\displaystyle \frac{x}{5}} \\ x=5\cdot \sin 30^{\circ }=2.5 \end{gathered}$$

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