Language 1
two lines that do not intersect.
Parallel Lines
angle whose measure is between 0 degrees and 90 degrees.
Acute
two angles formed across the vertices. These angles are always equal.
Vertical Angles
A line with 2 end points.
Line Segment
are all two points colinear
Yes
A Place in space represented by a dot and named by a capital letter.
Point
angle whose measure is 90 degrees.
Right
two angles whose sum is 180 degrees.
Supplementary angles
two lines that intersect to form right angles.
Perpendicular lines
If one complimentary angle is 30 degrees, the other must be what?
60 degrees
set of points which has infinite length in both directions
Line
angle whose measure is 180 degrees
Straight
two angles whose sum is 90 degrees.
Complimentary angles
When two lines cross each other, they form this....
vertex
If one supplementary angle is 100 degrees the other must be what?
80 degrees
A Flat surface
Plane
angle whose measure is greater than 180 degrees.
Reflex
two coplanar angles with a common vertex and a common side between them
Adjacent angles
If an angle is greater than 180 degrees it is classified as a What
Reflex
Are any three points always colinear
NOPE
is the part of a line that contains one endpoint and extends forever in the other direction.
Ray
angle whose measure is greater than 90 degrees but less than 180 degrees.
Obtuse
angles that have the same measure.
Congruent angles
A shape that is 360 degrees it is classified as a ???
Circle
What is the tool for measuring an angle called?????
Protractor