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10 terms

1-10 Circle Terminology

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Circle
the set of coplanar points equidistant from a given point
Radius
the distance from the center point
Chord
segment who endpoints lie on a circle
Diameter
a chord that contains the center of the circle
Secant
a line that intersects a circle in two points
Tangent
in a plan, a line that intersects a circle at exactly one point
Point of Tangency
the point where the tangent line intersects the circle
Common Tangent
two or more circle that share same tangent line
Congruent Circles
circles that have congruent radii
Concentric Circles
circles that lie in same plane & have same center point