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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?
1. collinear = points on the same line coplanar = points in the same plane
2. remember the other problem? two rays w/ the same endpoint and form a line are opposite rays
so 2 is two rays w/ the same endpoint and form a line are opposite rays
3. to figure this one out, try drawing a line through a plane and seeing how many times it can intersect
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
#4 the teacher didnt really explain........
4. I'm not really sure, it would depend on which geometric figure you're talking about
as an example, you name a line by picking 2 points, you name an angle by picking either 3 points, or the vertex, etc.
this is mainly on plains and points like that
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
So that could be the answer?
well, it's a start, I would flesh it out with more details, and in complete sentences, etc.