Radian measure compares two lengths on the same circle: distance along the intercepted arc divided by the radius. That ratio tells how many radius-lengths fit along the arc, so equal arc and radius lengths define the unit benchmark. The curved arc matters here, not the straight chord between its endpoints.
Inside Gozunta
Turn the preview into practice.
More than a preview
Gozunta lets you study this problem—and more than 10,000 others.
Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.
