1.6:Measuring angles Flashcards
1
Q
Angle
A
Formed by two rays with the same endpoint.
2
Q
Acute angle
A
Less than 90 deg. but greater than 0 deg.
3
Q
Right angle
A
Equal to 90 deg.
4
Q
Obtuse angle
A
Greater than 90 deg. but less than 180 deg.
5
Q
Straight angle
A
Equal to 180 deg.
6
Q
Congruent angles
A
Angles with the same measure.
7
Q
Vertical angles
A
Two angles whose sides are opposite rays.
8
Q
Adjacent angles
A
Two coplanar angles with a common side, a common vertex, and no common interior points.
9
Q
Complementary angles
A
Two angles whose measure have sum 90.
10
Q
Supplementary angles
A
Two angles whose measure have sum 180.
