help with 1

sin 60  = opp/hyp   =  15/hyp

sin 60 = 15/hyp     solve for hyp

Thanks EP,

continuing

\(sin 60 = \frac{15}{hypotenuse}\\ \frac{sin 60}{1} = \frac{15}{hypotenuse}\\ \text{turn both sides upside down}\\ \frac{1}{sin 60} = \frac{hypotenuse}{15}\\ \text{mult both sides by 15}\\ \frac{1*15}{sin 60} =hypotenuse\\ hypotenuse=\frac{15}{sin60} \)