Finding theta given the arc length and radius

The video tutorial explains how to find the central angle (Theta) using the formula s = r * Theta, where s is the arc length and r is the radius. The arc length must be in radians, and if given in degrees, it should be converted to radians. The tutorial walks through a problem where the radius is 7 units and the arc length is 32 units, leading to a calculation of Theta as 4.57 radians. The importance of using radians for Theta is emphasized, and the video concludes with a discussion on representing units.

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