Circles In Geometry, Basic Introduction – Circumference, Area, Arc Length, Inscribed Angles & Chords

This geometry video tutorial provides a basic introduction into circles. It explains how to calculate the area of a circle as well as the circumference of a circle. It also explains how to calculate the arc length of a sector as well as the area of a sector in a circle. it explains the difference between the radius, chord, and diameter of a circle. It mentions how to calculate the inscribed angle as well as the measure of the intercepted arc. It discusses how to calculate the area of the shaded region given a right triangle inscribed in a circle.

Circles – Area, Circumference, Radius: https://www.youtube.com/watch?v=D4nGkWOPb6M

Circles – Chords, Radius, & Diameter:

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