How to determine the angle of an inscribed angle of a tangent and secant line

The video tutorial explains how to calculate the measure of an angle on a circle using the inscribed angle formula. It demonstrates the process of finding the arc measure by subtracting from 360 degrees and then using secant and tangent lines to determine the angle measure as half of the arc. The tutorial concludes with a recap of the formulas discussed.

If the arc measures 228 degrees, what is the measure of the angle formed by a secant and a tangent line?

Explain the formula used to find the measure of an angle when one line is secant and the other is tangent.