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

## What is an inscribed angle?

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.

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