Inscribed Angle Definition (Illustrated Mathematics Dictionary)

Math is Fun ABCDEFGHIJKLMNOPQRSTUVWXYZ Definition of Inscribed Angle more ... Inscribed Angle

An angle made from points sitting on a circle's circumference.

A and C are "end points" B is the "apex point"

AB and BC are chords.

Play with it here (when you move point "B", what happens to the angle?):

../geometry/images/circle-prop.js?mode=inscribe See: Circle, Angle, Circumference, Chord Circle Theorems Copyright © 2025 Rod Pierce

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