## Lets try an example!

## Cosine Triangle

In this triangle we are given the hypotenuse and the adjacent side from angle theta. We want to find angle theta so we use the CAH in SOH CAH TOA or simply Cos for our ratio. Since we want to find the angle in this triangle we must use the inverse ratio.

1. Determine what trigonometry ratio to use (cosine in this case)

2. Insert the measurements in the known equation

3. Find the ratio in decimals.

4. Solve by using the inverse Cos ratio button times the ratio in step 3.

5. Don't forget the units

1. Determine what trigonometry ratio to use (cosine in this case)

2. Insert the measurements in the known equation

3. Find the ratio in decimals.

4. Solve by using the inverse Cos ratio button times the ratio in step 3.

5. Don't forget the units