Goes on forever and ever with arrows on both sides
Line
You can draw a little square in the corner
right angle
I have four right angles and two sets of parallel sides
rectangle
0x10
0
8/8
1
Part of a line with endpoints
Line segment
smaller than a right angle
acute angle
I have four equal sides but no right angles
Rhombus
5x6
30
80/10
8
A line with an arrow and an endpoint
ray
bigger than a right angle
obtuse angle
I have four right angles and four equal sides
Square
12x8
96
16/4
4
When two rays meet at an endpoint
Angle
Angles pointing inwards on a shape
Concave angle
I have 2 sets of parallel sides
parallelagram
4x50
200
30/5
6
The point where two lines meet
vertex
Angles pointing outwards on a shape
convex
I have one set of parallel sides
Trapazoid
72x6
432
34/8
4R2