polygon sides
lines
100

what polygon has six sides?

heptagon

100

<----------> what is that called?

line

200

what polygon has eight sides?

octagon

200

.__________.what is that called

line segment

300

what polygon has ten sides?

decagon

300

<-----_____. what is this called?

ray

400

what polygon has nine sides?

nonagon

400

. what is that called

point

500

what polygon has seven sides?

heptagon

500

what do the arrows at the end of the line mean?

it goes on and on and on and on and on