This geometry video tutorial provides a basic introduction into central angles, circle arcs, and angle measurement. It explains the difference between a major arc and a minor arc. A central angle always form a minor arc which is less than 180 degrees in angle measure. The major arc is greater than 180 degrees. A semicircle has an intercepted arc of exactly 180 degrees. This video contains plenty of examples and practice problems.

Circles - Area, Circumference, Radius:
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Circles - Chords, Radius, & Diameter:
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Lines, Rays, Line Segments, & Angles:
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2 Column Proofs - Cong. Segments:
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Triangle Congruence - SSS, SAS, ASA:
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Tangent Lines and Secant Lines:
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Circles - Central and Inscribed Angles:
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Tangent Tangent Angle Theorems:
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Inscribed and Circumscribed Polygons:
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Power Theorems - Chords, Secants, & Tangents:
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Circle Theorems:
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Two Column Proofs With Circles:
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Circles Review - Geometry:
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Incenter, Circumcenter, and Orthocenter:
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Distance Between Point and Line in 2D & 3D:
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Area of a Triangle With Vertices:
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Coordinate Geometry:
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Geometry Review - Study Guide:
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Geometry Final Exam Review:
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Final Exams and Video Playlists:
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Full-Length Videos and Worksheets:
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