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### 29 Cards in this Set

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 3 Building Blocks of Geometry Points, Lines, Planes Point no side, only location Ex: .P Line straight arrangements of points, extends forever Plane flat surface, extending forever Colinear/Coplanar Points two or more points that line on the same line/plane. Congruent Two geometric figures are congurent if and only if they are identical in shape and size. Conditional/If-Then Statement A statement that can be expressed as an if-then statement. Ex: IF a polygon is a hexagon, THEN it has exactly 6 sides. Converse Statement The statement formed by reversing the two parts of a conditional statement. Biconditional/ If-Then Statement A statement in which a conditional statement and it's converse are both true. Ex:An angle is a right angle IF AND ONLY IF its measure is 90. Right/Acute/Obtuse Angle Angle whos measure is 90 Angle whos measure is less then 90. Angle whose mesure is 180 Angle bisector a ray that had an end point on the vertex of an angle and that divides the angle into two angles of equal measure. Parallel two lines on the same plane that never intersect Complementary Angles angles that are 90 when added together Supplementary Angles two angles that if added together = 180. Vertical Angles angles that are across from each other that have the same measure. Diagonals of a Polygon When a line from the point of a polygon connects diagonally to the other point. Equilateral Polygons a polygon whose sides are all congruent Equiangular A polygon whose angles are equal in measure Regular Polygon that is both equilateral and equiangular Scalene Triangle When all 3 sides of the triangle are different lengths. Isoceles Triangle When 2 or more sides are equal to each other Medians of Triangle A segment connecting the midpoint of aside to the opposite vertex. Altitude of Triangle A perpendicular segment from a vertex to the opposite side. Trapezoid a quadrilateral with exactly one pair of parallel sides. Kite a quadrilateral with exactly 2 paris of distinct congruent sides. Parallelogram A quadrilateral in which both parits of opposite sides are parallel. Rhombus an equilateral parallelogram Square an equiangular rhombus or an equilateral rectangle. Rectangle an equiangular parallelogram.