Guide to Game Development/Theory/Mathematics/Trigonometry/The basic identities applied to right angle triangles
Opposite, Adjacent and Hypotenuse
[edit  edit source]When you have a rightangled triangle, and you decide on one of the 2 nonrightangled angles, you can then decide on what the names of the sides are.
S^{o}h C^{a}h T^{o}a
[edit  edit source]S^{o}h C^{a}h T^{o}a is an acronym to help you remember how you can use your knowledge of opposites, adjacents and hypotenuses to find extra pieces of information on a rightangled triangle. Written out as three equations, it looks like:
Using these three equations, if you were given two pieces of information (as long as they're both NOT angles), you can any other piece of information on the triangle. Note: the Greek letter, is often used with angles to mean, "an unknown angle."
Inverse trigonometry
[edit  edit source]There are three main inverse trigonometric functions: and .
If the trigonometric function with an angle gives you a value, then the inverse trigonometric function of the value, will give you the angle.
Example questions Answer:
Answer:
Answer:
Answer:
Answer:
Answer:
