Question

Find a. Write your answer in simplest radical form.

Answer 1

Answer:

$\sin(60) = \frac{5 \sqrt{3} }{a} \\ \\ \frac{ \sqrt{3} }{2} = \frac{5 \sqrt{3} }{a} \\ \\ a = \frac{2 \times 5 \sqrt{3} }{ \sqrt{3} } \\ \\ a = 10$