Enter the adjacent length and the hypotenuse length into the COS Ratio Calculator. The calculator will evaluate and display the COS Ratio.

## COS Ratio Formula

The following formula is used to calculate the COS Ratio.

COSR = A / H

• Where COSR is the COS Ratio ( )
• A is the adjacent length
• H is the hypotenuse length

## How to Calculate COS Ratio?

The following example problems outline how to calculate COS Ratio.

Example Problem #1:

1. First, determine the adjacent length.
• The adjacent length is given as: 8.
2. Next, determine the hypotenuse length.
• The hypotenuse length is provided as: 10.
3. Finally, calculate the COS Ratio using the equation above:

COSR = A / H

The values given above are inserted into the equation below and the solution is calculated:

COSR = 8 / 10 = .80

Example Problem #2:

For this problem, the variables required are provided below: