Angles Vocabulary Flash Cards

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an angle that measures less than 90^o	Acute Angle
angles that share a common side	Adjacent Angles
interior angles of a transversal with the same measure	Alternate Interior Angles
exterior angles of a transversal with the same measure	Alternate Exterior Angles
formed when two rays have the same endpoint	Angle
the sum of adjacent angles equals 90^o	Complementary Angles
angles with the same measure	Congruent Angles
Angles that are in the same position (matchers) on a transversal	Corresponding Angles
an angle that measures greater than 90^o	Obtuse Angle
angles that are across from each other - usually congruent	Opposite Angles
a device that is used to measure an angle	Protractor
an angle that measures 90^o	Right Angle
one of the rays that form an angle	Side
an angle measuring 180^o	Straight Angle
the sum of adjacent angles equals 180^o	Supplementary Angles
The point where two rays meet to form an angle	Vertex
angles that are opposite each other when lines intersect. (congruent)	Vertical Angles

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