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Unit 4: Geometry

QuestionAnswer
Adjacent angles Angles in the same plane that have a common vertex and a common side
Complementary angles Two angles whose measures add to 90 degrees.
Congruent angles Angles that have the same measure.
Cross section The intersection of a three dimensional figure and a plane.
Intersection A point or a set of points common to two or more geometric figures.
Supplementary angles Two angles whose measures add to 180 degrees.
Vertical angles A pair of opposite congruent angles formed by intersecting lines.
Circumference The distance around a circle.
Composite figure A figure made up of simple geometric shapes.
Diameter A line segment that passes through the center of a circle and has endpoints on the circle.
Radius A line segment with one or more endpoints at the center of a circle.
Polygon A closed plane figure with at least three straight sides and angles. Is regular only when all sides are congruent, and all angles are congruent.
Parallel Lines Lines that lie in the same plane and are the same distance apart over their entire length.
Pi The Greek letter is used to represent the ratio of the circumference of a circle to its diameter.
Created by: Dr. Sirmans
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