all points around a center point
line goes through a circle
line touches a circle at one point
point of tangency
tangent line intersects to where it is tangent
angle whose vertex is the center
the part of the circle opposite of the vertex
measure of an arc
same as its central angle
angle whose vertex is on the circle
the arc created by inscribed angle
polygon inside a circle
circle outside a polygon
standard equation of a circle
finding the radius of a circle in a plane
satisfy a given condition
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