Enter the length of the first side and the length of second the side into the Trig Ratio Calculator. The calculator will evaluate and display the Trig Ratio.

## Trig Ratio Formula

The following formula is used to calculate the Trig Ratio.

TR = Sin(a) = O/H

• Where TR is the Trig Ratio (\${Main Units})
• O is the length of first side
• H is the length of second side

## How to Calculate Trig Ratio?

The following example problems outline how to calculate Trig Ratio.

Example Problem #1:

1. First, determine the length of first side.
• The length of first side is given as: 60.
2. Next, determine the length of second side.
• The length of second side is provided as: 40.
3. Finally, calculate the Trig Ratio using the equation above:

TR = Sin(a) = O/H

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

TR = Sin(a) = 60/40 = 1.5

Example Problem #2:

For this problem, the variables required are provided below:

length of first side = 70

length of second side = 50

Test your knowledge using the equation and check your answer with the calculator above.TR = Sin(a) = O/H = ?