THEOREMS ON TANGENTS (PART 1 OF 3) | JERRYCO JAURIGUE

THEOREMS ON TANGENTS (PART 1 OF 3) | JERRYCO JAURIGUE
Theorem 1: A tangent is perpendicular to the radius drawn to the point of intersection
Theorem 2: A line perpendicular to a radius at a point touching the circle must be tangent.
Theorem 3. Tangents drawn to a circle from an outside point are equal.
#GeoGebra
Links to the applets:
www.geogebra.org/m/C7dutQHh
Reference: Elementary College Geometry by Henry Africk
CUNY New York City College of Technology
open.umn.edu/opentextbooks/te...