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Geometry Vocab Chapter 1 (angle (Sides: One of the lines that make a flat…
Geometry Vocab Chapter 1
Line: A geometrical object that is straight, infinitely long and infinitely thin. 
Plane:
angle
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Congruent Angle: have the same angle (in degrees)
Sides: One of the lines that make a flat shape.
or one of the surfaces that make a solid 3-dimensional object.
polygon: a plane figure with at least three straight sides and angles, and typically five or more.
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Vertex: each angular point of a polygon, polyhedron, or other figure.
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Formulas
Midpoint Formula
Distance Formula
Point
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Ray: A portion of a line which starts at a point and goes off in a particular direction to infinity.
Opposite Rays: Two rays with a common endpoint that point in opposite directions and form a straight line.