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Math
Geometry
Geometry Angles - Frank
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Terms in this set (16)
Adjacent angles
Pair of angles with a common vertex and share a side
Vertical angles
Angles opposite each other when two lines intersect
Complementary angles
Two angles with a sum of 90 degrees
Corresponding angles
Angles that correspond to one another when lines cross
Obtuse angle
Angle more than 90 degrees but less than 180 degrees
Supplementary angles
Pair of angles that add up to 180 degrees
Parallel lines
Lines that never intersect
Alternate interior angles
Angles on opposite sides of the transversal but inside the two lines
Exterior angle sum theorem
An exterior angle of a triangle is equal to the sum of the opposite interior angles
Perpendicular lines
Lines that form a 90 degree angle
Acute angle
Angle less than 90 degrees
Straight angles
Angles that form a straight line at 180 degrees
Ray
A portion of a line that starts off at a point and continues on for infinity
Consecutive interior angles
Angles on the same side of the transversal between two lines
Alt exterior angles
Angles on opposite sides of the transversal but inside the two lines
Linear pair
Angles that are adjacent and supplementary
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