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16 Cards in this Set
- Front
- Back
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perpendicular bisector
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a segment, ray or plane that is perpendicular to a segment at its midpoint
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equidistant from two points
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the same distance from one point as from another point
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distance from a point to a line
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the length of the perpendicular segment from the point to the line.
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equidistant from two lines
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the same distance from one line as from another line
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perpendicular bisector of a triangle
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a line ray or segment that is perpendicular to a side of a triangle at the midpoint of the side
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concurrent lines
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three or more lines that intersect in the same point
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point of concurrency
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the point of intersection of concurrent lines
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circumcenter of a triangle
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the point of concurrency of the perpendicular bisectors of a triangle
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angle bisector of a triangle
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a bisector of an angle of the triangle
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incenter of a triangle
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the point of concurrence of the angle bisectors triangle
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median of a triangle
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a segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side
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centroid of a triangle
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the point of concurrency of the medians of a triangle
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altitude of a triangle
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the perpendicular segment from a vertex of a triangle to the opposite side or to the line that contains the opposite side
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orthocenter of a triangle
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the point of concurrency of the lines containing the altitudes of a triangle
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mid-segment of a triangle
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a segment that connects the midpoints of two sides of a triangle
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indirect proof
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a proof in which you prove that a statement is true by first assuming that its opposite is true. if this assumption leads to an impossibility then u have proved that the original statement is true
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