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Geometry- angle relationships #1
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Key Concepts:
Terms in this set (16)
complementary angles
Two angles with a sum of 90 degrees
Linear Pair
Two adjacent angles with a sum of 180 degrees
Supplementary Angles
Two angles with a sum of 180 degrees
Vertical Angles
Two non-adjacent angles formed by intersecting lines.
Transversal line
A line that intersects or crosses two other lines
Alternate angles
Angles that are on opposite sides of the transversal
Interior angles
Angles that are inside of the parallel lines
Exterior angles
Angles that are outside of the parallel lines.
Congruent
Figures with the same shape and size.
Parallel lines
Lines with the same slope and therefor never touch.
Adjacent
having a common vertex and a share common side.
Corresponding angles
two angles on the same side of the transversal. One is exterior and one is interior. They are NOT adjacent.
Same- Side interior angles
between the two parallel lines AND on the same side of the transversal.
Right angle
An angle that measures 90 degrees
Acute angle
An angle that measures less than 90 degrees
Obtuse Angle
An angle that measure more than 90 degrees
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