Circles – Chords, Radius & Diameter – Basic Introduction – Geometry

This geometry video tutorial provides a basic introduction into circles as relates to chords, the radius of a circle as well as its diameter. If a radius bisects a chord, it is always perpendicular to that chord. Also, if two chords are equidistant from the center of a circle, the two chords are congruent. This video contains a few practice problems on congruent chords. This tutorial explains how to calculate the radius of a circle given the distance of a chord from the center of a circle as well as the length of the chord. It also explains how to calculate the radius of a circle if a rectangle is inscribed inside of it.

Circles – Area, Circumference, Radius:

Lines, Rays, Line Segments, & Angles:

2 Column Proofs – Cong. Segments:

Triangle Congruence – SSS, SAS, ASA:

Central Angles and Circle Arcs:

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Tangent Lines and Secant Lines:

Circles – Central and Inscribed Angles:

Tangent Tangent Angle Theorems:

Inscribed and Circumscribed Polygons:

Power Theorems – Chords, Secants, & Tangents:

Circle Theorems:

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Two Column Proofs With Circles:

Circles Review – Geometry:

Incenter, Circumcenter, and Orthocenter:

Distance Between Point and Line in 2D & 3D:

Area of a Triangle With Vertices:

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Coordinate Geometry:

Geometry Review – Study Guide:

Geometry Final Exam Review:

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathScienceTutor/collections