## Basic and Rich Geometry Concepts Part 9, Segment Relation for a Secant of a Circle

A secant of a circle is a line segment from a point external to the circle intersecting it at two points on its periphery. In other words, a circle divides its secant into two segments. In this 9th concept tutorial session on Geometry, the important relation between the secant segments and the tangent segment from the external point is explored in details with proofs...