Enter the length of the minor arc and the radius of a circle into the calculator. The calculator will display the inscribed angle of that circle. View the image below to understand what the inscribed angle is.

## Inscribed Angle Formula

The following equation can be used to calculate the inscribed angle of a circle and minor arc.

A = 90 * L / Pi*R

- Where A is the inscribed angle
- L is the length of the minor arc
- R is the radius

## Inscribe Angle Definition

An inscribed angle is an angle contained within two arcs across a circle. The formula above uses the minor arc, or shortest arc, for the calculation of the inscribed angle.

## Inscribed Angle Example

How to calculate an inscribed angle?

**First, determine the minor arc.**Measure the length of the minor arc.

**Next, determine the radius.**Measure the length of the radius.

**Finally, calculate the inscribed angle.**Using the formula above, calculate the inscribed angle.

## FAQ

**What is an inscribed angle?**

An inscribed angle is angle contained between two arcs in a circle.