Enter the primary angle (degrees) into the Calculator. The calculator will evaluate the Reflex Angle.

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## Reflex Angle Formula

RA = PA + 180

Variables:

- RA is the Reflex Angle (degrees)
- PA is the primary angle (degrees)

To calculate Reflex Angle, add 180 to the primary angle.

## How to Calculate Reflex Angle?

The following steps outline how to calculate the Reflex Angle.

- First, determine the primary angle (degrees).
- Next, gather the formula from above = RA = PA + 180.
- Finally, calculate the Reflex Angle.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

primary angle (degrees) = 40