Lines
a line with two endpoints
line segment
lines smaller than right angles
acute
1824/4
456
a square
a line with one endpoint and a line that continues forever
a ray
lines greater than right angles
obtuse
7438 x 7
52,066
polygon
lines that intersect that DO make right angles
perpendicular
the degree that a right angle makes
90
24783 + 8606
33,389
shape with 4 right angles but NOT 4 even sides
rectangle
the starting point on a ray or line segment
point
1. their vertex
2. their segment points
21504/8
2688
triangle
lines that cross that DON'T make right angles
intersecting
degree made by a straight angle
180
27x78
2106
closed shape with no sides or angles
circle or oval