Respuesta :
If a line is perpendicular to a circle's radius at its outer endpoint, then the line is _Tangent_ to that circle.
What is tangent to a circle?
A line segment which touches a circle specified to only one point is called a tangent to that circle.
A line segment is a straight line with finite length, and thus, have to endpoints(points on either ends).
If there is circle O with tangent line L intersecting the circle at point A, then the radius OA is perpendicular to the line L.
We need to find the if a line is perpendicular to a circle's radius at its outer endpoint, then the line is _____(what) to that circle.
If a line is perpendicular to a circle's radius at its outer endpoint, then the line is _Tangent_ to that circle.
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