Lesson VIDEO: Tangents to a Circle Part 1

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This Lesson (VIDEO: Tangents to a Circle Part 1) was created by by bperkhou(0) About Me : View Source, Show
About bperkhou: I am a student at Stanford University.



In this video lesson I explain the concept of a tangent line and an important property. Specifically, a tangent to a circle is a line which intersects it exactly once. It has the property that the radius through the point of intersection is perpendicular to the tangent line. We use this fact and the Pythagorean theorem to solve several problems. For more details, see the video.

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