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Question

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anonymous · Answer

1. What does it mean for points to be collinear? coplanar?
2. What do you call two rays that have the same endpoint and form a line? 
3. Can a line intersect a plane in only two points? Explain.
4. How do you name geometric figures?

vocaloid · Answer

1. collinear = points on the same line
coplanar = points in the same plane

vocaloid · Answer

2. remember the other problem? two rays w/ the same endpoint and form a line are opposite rays

anonymous · Answer

so 2 is two rays w/ the same endpoint and form a line are opposite rays

vocaloid · Answer

right...

vocaloid · Answer

3. to figure this one out, try drawing a line through a plane and seeing how many times it can intersect

vocaloid · Answer

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anonymous · Answer

only once. ITs like If you put a pencil through a piece of paper, it's only going to cross the paper in one place

vocaloid · Answer

right

anonymous · Answer

#4 the teacher didnt really explain........

vocaloid · Answer

4. I'm not really sure, it would depend on which geometric figure you're talking about

vocaloid · Answer

as an example, you name a line by picking 2 points, you name an angle by picking either 3 points, or the vertex, etc.

anonymous · Answer

this is mainly on plains and points like that

vocaloid · Answer

well, in short:

point: one letter
line/line segment: two points
plane: three points
angle: three points, or the vertex
ray: two points, with the endpoint first

anonymous · Answer

So that could be the answer?

vocaloid · Answer

well, it's a start, I would flesh it out with more details, and in complete sentences, etc.