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Angles and Lines

Acute Angle An angle with a measure between 0 and 90 degrees.
Complementary Angles Two or more angles whose measures have the sum 90.
Congruent Angles Angles that have equal measures.
Parallel Lines Lines that will never intersect.
Perpendicular Lines Lines that meet at a 90 degree angle
Obtuse Angle An angle with a measure between 90 and 180 degrees.
Right Angle An angle with measure of 90 degrees.
Transversal A line that intersects two or more lines at different points.
Vertical angles Congruent opposite angles formed by two intersecting lines
Angle (and Vertex) A figure formed by two rays that have the same endpoint. The two rays are called the sides of the angle. Their common endpoint is the vertex.
Created by: dbwebb on 2009-02-14

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