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 = ?