Quick self-quiz
Tap each word to check what it stands for.
When to use it
Use it in any right-triangle problem where you need to set up a sine, cosine, or tangent ratio.
Example
In a right triangle with angle , opposite side 5, hypotenuse 10, SOH gives .
Common mistake
Confusing adjacent and opposite sides. Adjacent is next to the angle; opposite is across from it.
