Definitions and Theorems

Definitions and Theorems - Definitions Collinear: three...

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Definitions Collinear: three points that all lie on a single line Rotation of rays: the collection of all possible rays emanating from a single point Midpoint: divides the line segment into two equal parts Complementary: the sum of two angles is 90 o Supplementary: the sum of two angles is 180 o Linear pair: two angles with a common side and their sides are opposite rays Vertical angles: two angles with the sides of one angle are opposite rays of the sides of the other. Congruence: two objects can lie on each other exactly if moved by rigid motion or a correspondence b/t objects preserving lots of good properties Polygon: Set of line segments so that each line segment intersects exactly two others, one at each endpoint Convex: given two points of a polygon, A and B, in the interior of the polygon, the line segment AB is also contained in the interior Exterior angle of a triangle: any angle that forms a linear pair with an angle of the triangle Transversal: a line passing trough two or more lines at distinct points
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Definitions and Theorems - Definitions Collinear: three...

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