# Tangent Lines (P1)

## Definitions

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## A TANGENT LINE is a line in the plane of the circle that intersects the circle in exactly one point.

## The POINT OF TANGENCY is the point where a circle and a tangent intersect.

## A TANGENT-CHORD ANGLE is an angle formed by an intersecting tangent and chord has its vertex “on”; the circle.

## (1)

A) What is a tangent line?
B) What are two important parts of a tangent line and the circle it is tangent to?

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