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Geometry - 1-2

Angles, angle pairs, circles

TermDefinition
acute angle an angle whose measure is greater that 0 degrees and less than 90 degrees
right angle an angle whose measure is 90 degrees
obtuse angle an angle whose measure is greater that 90 degrees and less than 180 degrees
straight angle an angle whose measure is 180 degrees
complementary angles two angles whose measures have a sum of 90 degrees
supplementary angles two angles whose measures have a sum of 180 degrees
adjacent angles coplanar angles that share a vertex and side but no interior points
diameter a chord containing the center of a circle or sphere or the length of such a chord
radius a line segment connecting the center of a circle with a point on the circle, or the length of such a segment
chord a segment whose endpoints are points of a circle or points of a sphere
concentric circles circles that share the same center
Created by: shoemaker