Term
A dot that represents a specific location in a plane or space.
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Infinite set of points that extend in opposite directions (2 points define a line).
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An initial point and all of the points in one direction (part of a line).
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Formed by two rays with the same initial point.
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Two endpoints and all of the points in between.
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A flat surface that extends infinitely in all directions (3 points define a plane).
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Two lines that are in the same plane and do not intersect.
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Lines that cross each other at a point are called intersecting lines.
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Two lines that for 90° angles at their intersection.
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A straight line that follows the horizon (from left to right).
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A straight line that is perpendicular to a horizontal line (up and down).
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Is the point at which 2 sides of an angle meet.
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Any angle that measures less than 90°.
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Any angle that measures between 90° and 180°.
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Any angle that measures exactly 90°.
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Any angle that measures exactly 180°.
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The total sum of the angles must equal 180°.
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All 3 angles are acute.
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Has 1 right angle and 2 acute angles
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Has 1 obtuse angle and 2 acute angles.
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All 3 sides different lengths.
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Term
Has 2 sides of equal length.
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Term
All sides are equal.
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Definition

