Tangent-Radius Theorem:
If a line is tangent to a circle, then it is perpendicular to a radius
drawn to the point of tangency.
Converse of the Tangent-Radius Theorem:
If a line is
to a
of a
at a
on the circle, then it is
to the circle at that
cn
the circle.

TangentRadius Theorem If a line is tangent to a circle then it is perpendicular to a radius drawn to the point of tangency Converse of the TangentRadius Theorem class=