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15 Cards in this Set
 Front
 Back
Acute angle

Measures greater than 0 and less than 90


Right angle

measures 90


Obtuse angle

measures greater than 90 and less than 180


Straight angle

Formed by two opposite rays and measures 180


Segment Addition Postulate

If B is between A and C, then AB + BC = AC


Adjacent angles

Two anfles in the same plane with a common vertex and common side, but no common interior points


Supplimentary angles

Two anfles whose measures have a sum of 180.


Complementary angles

Two angles whose measures have a sum of 90.


Vertical angles

Two nonadjacent angles formed by two intersecting lines.


Circle
Ciccumference Formula 
Distance around the circle.
C = ~d or C =2~r 

~ (pi)

Approximately 3.14 or 22
7 

Circle
Area formula 
A = ~r


Circle
Diameter 
Segment that passes through the center of the circle.


Circle
Radius 
Segment whose endpoints are the center of the circle and a point on the circle.


Angles
Linear pair 
Pair of adjacent angles whose noncommon sides are opposite rays.
