Right Triangle Trigonometry
What is it?
What so you use?
Symbols
Side of a triangle
Finding the angle
Example 1
Extra resources
Ok, so our angle is 34.7. The hypotenuse (AB) is 13. Lets say we want to find the length of the side adjacent (AC) to it. So we use Cosine because we have the hypotenuse and we want the adjacent. So its Cos(34.7 )=X\13
All we do then is cross multiply the fractions.