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Start Chapter QuizCircles Mind Map
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Tangent to a circle
highA tangent to a circle is a line that touches the circle at exactly one point.
Always count the contact points first. One touching point means tangent; two intersection points mean secant.
Identifying tangent and secant situations
highA tangent touches a circle at one point, while a secant cuts the circle at two points.
Count intersections with the circle before naming the line. One point means tangent, two points mean secant.
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