Arc Length of a Circle Formula - Sector Area, Examples, Radians, In Terms of Pi, Trigonometry

This geometry and trigonometry video tutorial explains how to calculate the arc length of a circle using a formula given the angle in radians the and the length of the radius. It also explains how to calculate the sector area in terms of pi or in radians. In addition, it also explains how to determine the area of a sector of a circle using an equation where the angle is given in degrees instead of radians. This video contains plenty of examples and practice problems.

Trigonometry - Basic Introduction:
https://www.youtube.com/watch?v=g8VCHoSk5_o

Introduction to Angles:
https://www.youtube.com/watch?v=oxhXz9_uyiM

Radians and Degrees:
https://www.youtube.com/watch?v=JmLN3QxshlE

What Exactly Is a Radian?
https://www.youtube.com/watch?v=CHCWXAkozHM

Coterminal Angles:
https://www.youtube.com/watch?v=RkMhGwp8pv4

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Decimal Degrees to DMS:
https://www.youtube.com/watch?v=W9kousU6AI0

Arc Length of a Circle and Sector Area:
https://www.youtube.com/watch?v=C9z3FXS7nlo

Linear Speed and Angular Velocity:
https://www.youtube.com/watch?v=FgTvlGm9jgE

Clock to Angle Problems:
https://www.youtube.com/watch?v=LEHYr0XfSyI

The Unit Circle:
https://www.youtube.com/watch?v=57VrEiEPD1I

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