Question

what's the measure of S in the triangle?

Answer 1

I already swooned her, sorry

Answer 2

the sides we have relative to angle S are the opposite and the hypotenuse
so sin(s)=8/17
then we can take the arcsin of both sides

Answer 3

http://www.wolframalpha.com/input/?i=arcsin(8%2F17)&t=crmtb01

Answer 4

alternatively, 8^2+x^2=17^2
x=15
http://www.wolframalpha.com/input/?i=arctan(8%2F15)&t=crmtb01