Question

Pls help me with this multiple choice !

Answer 1

D

Explanation:

`\sin(60) = ( (5 √(3) )/(2) )/(a) \\ a = ( (5 √(3) )/(2) )/( \sin(60) ) = 5 \\ \cos(60) = (b)/(5) \\ b = 2.5 = (5)/(2)`