symbols and definitions
level 2 symbols and definitions
level 3 symbols and definitions and a little plane shapes
geometric plane shapes
level 2 geometric plane shapes
100
What is represented by a dot?
What is a point?
100
Two rays that share a common endpoint.
What is an angle?
100
Lines that cross each other at some point?
What is intersecting lines?
100
does not have a point of intersection
What is a simple closed shape?
100
is a four-sided polygon
What is a quadrilateral?
200
A group of points having two endpoints. 
What is line segment?
200
The meeting point of two lines that form an angle.
What is a vertex?
200
Intersecting lines that form four right angles.
What is perpendicular lines?
200
has the same shape but not the same size
What are similar shapes?(-means "is similar")
200
has opposite sides that are parallel
What is parallelogram?
300
Line segments of the same length.
What is congruent?
300
Extends indefinitely in two opposite directions.
What is a line?
300
Lines that never intersect.
What are parallel lines?
300
has the same shape and size

What are congruent shapes? (= means "is congruent")


300
 a parallelogram having four right angles
What is a rectangle? 
400
A group of points having no endpoints.
What is a line? 
400
Extends indefinitely in one direction.
What is a ray?
400
a quadrilateral having only one set of opposite sides that are parallel
What is a trapezoid?
400
is a simple closed shape made of line segments
What is a polygon?
400
a rectangle having four congruent sides
What is a square?
500
A group of points having one endpoint.
What is a ray?
500
An angle with a square corner.
What is a right angle?
500
five-sided, six-sided, seven-sided and eight-sided polygon
What is a pentagon, hexagon, heptagon and octagon?
500
is a three sided polygon
What is a triangle?
500
a parallelogram having four congruent sides
What is a rhombus?
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