Introduction
A Tangent of a Circle has two defining properties:
- A tangent intersects a circle in exactly one place
- The tangent intersects the circle’s radius at a 90° angle
Since a tangent only touches the circle at exactly one and only one point, that point must be perpendicular to a radius.
To test out the interconnected relationship of these two defining traits of a tangent, try the interactive applet.
The point where the tangent and the circle intersect is called the point of tangency.
Read more below:
SS2 Mathematics Third Term: Circle Theorem: Tangent Properties of Circle
