In the same circle or in congruent circles:
 13
 Chapter Reference
 In the plane, if a line is perpendicular to a circle's radius at its outer endpoint, then the
 line is ... to that circle
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 Answer: In the plane, if a line is perpendicular to a radius at its outer endpoint, then the line is Diames
 to the circle
 Diameter
 GRADE ANSWER INCORRECT
 Parallel
 Secant
 Symmetric matting?
 Tangent