Which of the following concepts can you use for right angles, and which can you use for non right angles?

Pythagorean theorem

using proportions in similar triangles

trig ratios: SOH, CAH, TOA

law of sines and cosines

30-60-90 and 45-45-90 triangles patterns

Pythagorean Theorem - - Used for right triangles (triangles with one right angle)

Using proportions in similar triangles - - Used for non-right triangles

Trig ratios SOH CAH TOA - - Used for right triangles

Law of sines and cosines - - Used for non-right triangles

30-60-90 and 45-45-90 triangles - - Used for right triangles