Education Technology

Circle Geometry: Angles Formed by Intersecting Chords

Activity Overview

This activity is intended to teach students about the rule associated with the angles formed by two chords intersecting within the circle and the intercepted arcs.

Before the Activity

Students should be aware of circle geometry terminology such as arcs, intercepted arcs, and chords.

During the Activity

This activity should be done in a class setting so that discussion can arise when students are trying to discover the rule between the intercepted arcs and the angles formed by the two chords.

See the attached PDF for samples of problems the students will explore.

After the Activity

An assignment to assess comprehension of the lesson should follow the activity.