Find hypotenuse
sin 60 = sqrt3 /2
sin 60 = opp / hyp = 13 sqrt3/hyp
sqrt 3 / 2 = 13 sqrt3 /hyp
hyp = 13 sqrt3 / (sqrt3 /2) = 26
then find other leg via pythag theor
26^2 = (13 sqrt3)2 + leg2
26^2 - (13 sqrt3)^2 = leg^2
leg = 13 Now you have the lengths of all three sides ....finish.....
