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Angle Vocab - Geometry
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Terms in this set (19)
acute angle
An angle that measures less than 90 degrees.
right angle
An angle that measures exactly 90 degrees.
obtuse angle
An angle that measures betwwen 90 and 180 degrees.
straight angle
An angle that measures exactly 180 degrees.
complementary angles
Angles whose measure adds up to 90 degrees.
supplementary angles
Angles whose measure adds up to 180 degrees.
vertical angles
Angles opposite one another at the intersection of two lines.
adjacent angles
Angles that have a common side and a common vertex (corner point).
vertex
A point where two or more straight lines meet.
congruent angles
Angles that have the same measure
line
is straight and extends without end in two direction.
ray
A part of a line, with one endpoint, that continues without end in one direction
Parallel Line
Two lines that never intersect and have the same slope
Intersecting Line
Lines that cross
Perpendicular,
Intersecting at or forming right angles
Bisector
A line, ray, or segment that passes through a midpoint of a segment
Angle Bisectors
A ray that divides an angle into two congruent angles.
Alternate Interior Angle
,Angles between a pair of lines that switch sides of a third intersecting line(transversal).
Corresponding Angles
Two angles that are in the same postion on different lines intersected by a third line; They are congruent.
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