1
Q
Adjacent Sides
A
Any two sides which share a common vertex
2
Q
Intersecting Lines
A
Lines that have one point in common
3
Q
Parallel Lines
A
Lines that lie in the same plane and do not intersect
4
Q
Right Angle
A
an angle that measures 90 degrees
5
Q
Vertex
A
The common endpoint of two or more
rays or line segments
6
Q
Complementary angles
A
Two (or more) angles whose sum is 90 degrees
7
Q
Supplementary angles
A
Two angles whose sum is 180 degrees
8
Q
Adjacent angles
A
Two angles that share a common side and have the same vertex
9
Q
Vertical angles
A
Two angles that are across from each other, formed by intersecting lines. They are equal
Pre-Algebra
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