Lines
Angles
Planes
Vocabulary
Miscellaneous
100
two lines that are the same distance apart and will never touch
What is parallel lines
100
This is the term for a 90 degree angle
What is right angle
100
It takes three special type of points to define one
What is non-collinear
100
These are points that are on the same line
What is collinear
100
A reasonable guess based upon a pattern
What is conjecture
200
lines that are not in the same plane
What are skew lines
200
An angle that is less than 90 degrees
What is acute
200
These two planes never intersect
What are parallel planes
200
These are points, lines, and angles that are all in the same plane
What is coplanar
200
The process of using a reasonable guess based upon patterns and observation
What is inductive reasoning
300
this has one endpoint and continues in one direction forever
What is a ray
300
an angle that is greater than 90 degrees
What is obtuse
300
This is what occurs when two planes intersect
What is a line
300
The next two numbers in this sequence are: 1, 4, 9, 16, 25...
What is 36 and 49
300
This is used to indicate that your conjecture is incorrect
What is a counterexample
400
This is part of a line with two distinct endpoints
What is a line segment
400
this is the number of degrees in a straight angle
What is 180 degrees
400
To sketch that planes have intersected, often you used these
What are dashed lines
400
This is what is said about two objects that are the same size and shape
What is a congruent
400
This person wrote the "book"
Euclid
500
This must have two points from the line, or a designated small letter name
What is the name of a line
500
Angles are measured in this unit
What is a degree
500
When naming a plane, this must be used
What are three points in the plane, or a Capital Letter
500
This is the common point where two rays form an angle
What is a vertex
500
This is what an acorn says when it grows up
Gee.. I'm a Tree!
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