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### 17 Cards in this Set

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 Acute Angle An Angle whose measure is less than 90d and more than 0d. Angle Bisector A ray that starts at the vertex of an angle that divides the angle in to two angles of equal measure. Complenmentry Angles Two angles whose measure have the sum of 90d. Concave Polygon A polygon with with one sdie that angles in Congruent Polygon A polygon with one sude taht angles in. Consectuive Vertices Consectuive: Going in order, next to each other. Equalangular Ploygons A ploygon whose sides are all the same length. Linear Pair of Angles A pair of angles on the same line. Mid-point A point that is equally distant from the two end points. Perimeter Sum of all sides, like a fence Perpendicular lines Two lines that insect to form a right angle. Plane A flat surface that goes on forever in all directions. Polygon A closed geometric figure. Ray A part of a line that has a beginning but no end. Regular Polygon A polygon whose angles and Right angle Angle whose measure is 90d. Skew lines Lines that are not in the same plane and that do not intersect.