Sine Function: sin(θ) = Opposite / Hypotenuse
=AB/AC
Cosine Function: cos(θ) = Adjacent / Hypotenuse
=BC/AC
Tangent Function: tan(θ) = Opposite / Adjacent
Pythagoras Theorem
(hypotenuse)2 = (adj side)2 + (Opp Side)2
AC2
= AB2 + BC2
AC
= √ AB2 + BC2
https://en.wikipedia.org/wiki/Pythagorean_theorem
=AB/BC