You use the trigonometric ratios when you are given a side and an angle in a right angle triangle and are asked to find a missing side.
Note: Which ratio to use will depend on the data you are given about the triangle.
Here are some examples below
If you are asked to find an angle in a right angle trianle and are given two sides then, in this case, you use the INVERSE TRIGONOMETRIC functions.
You use the trigonometric ratios when you are given a side and an angle in a right angle triangle and are asked to find a missing side.
Here are some examples below
If you are asked to find an angle in a right angle trianle and are given two sides then, in this case, you use the INVERSE TRIGONOMETRIC functions.
Nouri Dib