Changing the Way the Distance is Measured To change the way the distance is measured: Click the dimension between arcs. To display both First arc condition and Second arc condition in the Dimension PropertyManager, select the edges of both arcs with the Smart Dimension tool. In the Dimension PropertyManager, select the Leaders tab. Under Arc Condition:Set a value for First arc condition. Set a value for Second arc condition. Click . First arc condition Second arc condition Center Center Center Min Center Max Parent topicDimensions between Arcs or Circles Creating Dimensions Between Two Arcs Creating Dimensions Between Concentric Circles and Displaying Extension Lines Displaying Extension Lines After Placing Dimensions Changing the Radial Dimension Position Dragging Dimension Attachment Positions Dimension Leaders PropertyManager