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Geometry - Angle Vocab. Review
Help 6th grade students learn necessary vocabulary pertaining to types of angles
7
Mathematics
6th Grade
03/24/2009
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Term
acute angle
 Definition
An angle that measures less than 90°.
Term
obtuse angle
 Definition
An angle that measures between 90° and 180°.
Term
right angle
 Definition
An angle that measures exactly 90°.
Term
straight angle
 Definition
An angle that measures exactly 180°.
Term
vertical angles
 Definition
Opposite, congruent angles formed when two lines intersect.
Term
complementary angles
 Definition
Two angles whose sum is 90°.
Term
supplementary angles
 Definition
Two angles whose sum is 180°.
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