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Lines and Angles
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Terms in this set (13)
angles
formed by 2 rays with a common endpoint (vertex)
acute angle
an angle that is less than 90 degrees
obtuse angle
an angle that is greater than 90 degrees
right angle
An angle equal to 90 degrees
straight angle
An angle equal to 180 degrees
congruent angles
angles with the same measure
perpendicular lines
2 lines that intersect at a right angle
supplementary angles
Two angles whose sum is 180 degrees
complementary angles
Two angles whose sum is 90 degrees
adjacent angles
Angles that have a common side and a common vertex (corner point).
parallel lines
2 lines that do not intersect
line segment
part of a line with two endpoints
Line
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