Basic Terms
Segments
Angles
Angle Relationships
More Angle Relationships
100
A location that has neither shape nor size. Always represented with a CAPITAL letter.
Point
100
A measurable part of a line that consists of two points, called endpoints. AB is a _________.
Line Segment
100
A pair of rays that have a common endpoint.
Angle
100
Angles a and b are these
Adjacent angles
100
Two angles whose sum is 90o.
Complementary Angles
200
Through any two points there is exactly ONE of these. Always named using TWO points on it.
Line
200
The length of line segment EF.
5.3 in.
200
Two collinear rays with a common endpoint. They form a straight angle which has a measure of 180o.
Opposite Rays
200
Opposite rays form this, which has a measure of 180o.
Straight angle
200
Two angles whose sum is 180o.
Supplementary Angles
300
A flat surface made up of points that extends infinitely in all directions.
Plane
300
The measure of line segment AB
4
300
The common endpoint where two rays meet to form an angle.
Vertex
300
A pair of adjacent angles with noncommon sides that are opposite rays.
Linear Pair
300
The measure of angle GEF
69o
400
A, F, and B. Points that lie on the same line.
Collinear
400
The length of line segment AC.
10.1 cm
400
The blue shaded region.
Interior of an angle
400
Angles a and b are called _________.
Vertical angles
400
The measure of angle PNO
60o
500
A, G, H. Points that do NOT lie on the same line.
Non-Collinear
500
If AC = 62, how would you solve this problem?
3x - 4 + 3x - 4 = 62
Solve for x
500
The blue shaded region.
Exterior of an angle
500
A ray or segment that divides an angle into two congruent parts.
Angle bisector
500
The measure of angle CDF
37o