9.7: Angles On and Inside a Circle Difficulty Level: At Grade Created by: CK-12 Estimated7 minsto complete % Progress Practice Angles On and Inside a Circle MEMORY METER This indicates how strong in your memory this concept is Practice Progress Estimated7 minsto complete % Estimated7 minsto complete % Practice Now MEMORY METER This indicates how strong in your memory this concept is Share Add to Library Turn In Read Practice Resources Details Loading... Notes/Highlights Having trouble? Report an issue. Color Highlighted Text Notes Show More Vocabulary Language: English ▼ English Spanish central angle An angle formed by two radii and whose vertex is at the center of the circle. chord A line segment whose endpoints are on a circle. diameter A chord that passes through the center of the circle. The length of a diameter is two times the length of a radius. inscribed angle An angle with its vertex on the circle and whose sides are chords. intercepted arc The arc that is inside an inscribed angle and whose endpoints are on the angle. point of tangency The point where the tangent line touches the circle. Chord/Tangent Angle Theorem The Chord/Tangent Angle Theorem states that the measure of an angle formed by a chord and a tangent that intersect on a circle is half the measure of the intercepted arc. Intersecting Chords Angle Theorem The Intersecting Chords Angle Theorem states that the measure of the angle formed by two chords that intersect inside a circle is the average of the measures of the intercepted arcs. Image Attributions Show Hide Details Description This concept teaches students how to find angles on and inside a circle created by chords and tangent lines. Learning Objectives None Related Materials Angles On and Inside a Circle Difficulty Level: At Grade Authors: Bill Zahner Lori Jordan Tags: chord circle diameter (3 more) MAT.GEO.750.L.2 point of tangency tangent Subjects: mathematics Geometry Concept Nodes: MAT.GEO.750 (Angles On and Inside a Circle) Grades: 9 , 10 Date Created: Jul 17, 2012 Last Modified: Oct 06, 2016 Vocabulary None Save or share your relevant files like activites, homework and worksheet.To add resources, you must be the owner of the Modality. Click Customize to make your own copy.