Placing a radial dimension

A radial dimension measures the radius of a circle or arc. A radial dimension on a circle goes from the centerpoint to the circumference. A radial dimension on an arc can be inside, outside, or through the arc.

To place a radial dimension:

Select the radial dimension tool from the from the Sketch toolbar.
Click on the circle or arc. The dimension appears in the Sketch view and in the parameter table