Day three: The tangent line of a Circle

by Nami Youn


to understand the properties of the tangent of a circle

1. Perpendicular


Property : Any tangent line to a circle is perpendicular to the radius drawn to the point of tangency.

Gsp file

2. The length of tangent line

Property : Tangent segments to a circle from a point outside the circle are equal in length..

Gsp file


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