136.6025404sin30 = 68.30127019 according to my calculator. However, my teacher has marked my work and says it equals 68.20 rounded to 2 decimal places.
Can someone please check and see what they get? I can't see why our answers differ.
h/sin(135) = 50/sin(15)
hsin(15) = 50sin(135)
h = 50sin(135)/sin(15)
h = 136.6025404 (hypotenuse)
136.6025404sin(30) = 68.30127019 (opposite side length)
Having said all that I suspect my teacher has simply made a mistake. I'll send her an email and ask her to check it again, hopefully she'll have time.