Question

Find the length of short leg if thypotense is 21 in the given figure.

• A. 10
• B. 10.5
• C. 21
• D. 11

Answer 1

The correct option is B 10.5

In the given triangle.

$\cos {60}^{\circ }=\frac{SL}{H}\Rightarrow \frac{1}{2}=\frac{SL}{21}\Rightarrow SL=\frac{21}{2}=10.5$

So option $B$ is correct.