Basic Trig

This isn't my homework, it's a question

Hypotnous = H
Adjacent = Ha
Opposite =Ho


H = 15
Ho = 4
Ha = 6

What is the Theta? - How do I find the theta from the tiny number I get when I do the cosign\sin shit?

For added pleasure. How do I do reverse sin\cos\tangent- a.k.a Arc sin\cos\tan

THANKS TO YOU. Physics 2053

>>10
is a raging faggot who cares.

>>7
how do you get that?

I know the sin of fucking theta is h/o etc. that gives me a tiny fraction, how the fuck do i make it into a degree?