real world examples for these geometry terms?

Question

if you know ANY of them tell me, you dont have to know them all :)thanks

1.undefined term
2.collinear
3.coplanar
4.endpoint
5.opposite rays
6.postulate

Answer 1

1. i'm not sure, maybe like the number of grass in the world?? this is a weird one.



2. how about buildings or houses lined up straight (on the same line)



3. having houses that are right next to each other will make them coplanar



4. on a jumping rope, there is an endpoint like in a segment.



5. clocks are a good example of opposite rays, the hour and minute hand sharing one vertex



6. any postulate conjured by any scientist might be a postulate

Answer 2

1. The three undefined terms in geometry are point, plane, and line. A real world example for a point could be the point on a road map of your destination. A real world example of a plane could be a table top. Just remember that a plane does not have defined edges, but goes on indefinitely in all directions. Sorry, but I'm having trouble thinking of an example of a line.



2. The points on a map of three cities that are all along the equator are collinear points.



3. Three pencils that are all placed upon the same table top are coplanar because they are all in the same plane.



4. I really can't think of a great one. Maybe the opposite ends of a competition swimming pool could be the endpoints of the segment, which is the swimmer's lane.



5. I'm not sure. Maybe two cars that drive on the same road forever in opposite directions? Since opposite rays have to be collinear and go on forever in opposite directions from each other from an endpoint.



6. A postulate in geometry is a statement that is accepted without having to be proven true in a proof using previously known postulates and theorems. Maybe an example could be the statement, "The sky is blue." No one is going to dispute that. It is common knowledge. You don't have to use supporting facts to defend that statement.



Hope this helped!

Answer 3

in our class were on the same stuff and my teacher told us to think of it as a meter stick.