Geometry 12.3d, Introducing Radians & convert degrees and radians

An explanation of the difference between degrees and radians (1 radian is approximately 1/6 of a circle), the relationship between the radius and arc length of a central angle as a Radian, the Greek letter Theta as a symbol to represent the name of an angle, using the superscript for degrees with Theta to represent the measure of angle Theta in degrees, using the superscript capital R to represent the measure of angle Theta in radians. We discuss several examples of converting angle measures from degrees to radians, then radians to degrees. We use theta notation in a proportion to convert degrees to radians, then radians to degrees (which is taught in trigonometry and pre-calculus).

Theta information https://en.wikipedia.org/wiki/Theta

Geometry 12.3a, Sector of a circle & Sector area

Geometry 12.3b, Area of a Segment of a circle

Geometry 12.3c, Arc length of a Circle

High School Geometry Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVBM1nPhwW1lTuxi32Q0IZ3

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