Three-Point Radius Measurement

The Three-Point Radius measurement tool places specialized markups that calculate the radius as an arc. While a markup placed with the Three-Point Radius tool can be made into a full circle after it has been placed, it always starts as an arc; to place a circular markup that also calculates the radius of the circle, see Center Radius Measurement.

As with any measurement, be sure to calibrate the document first.

Related topics

Calibrate

Diameter Measurement

Angle Measurement

Center Radius Measurement

Measurements Tab