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The geometric figure formed at the intersection of two distinct lines.
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| The geometric figure formed by two points. A line is the straight path connecting two points and extending beyond the points in both directions. |
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| A flat surface extending in all directions. Any three noncollinear points lie on one and only one plane. So do any two distinct intersecting lines. A plane is a two-dimensional figure. |
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| A part of a line starting at a particular point and extending infinitely in one direction. |
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All points between two given points (including the given points themselves).
Example: line segment [image]
[image]
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Definition
Lying on the same line.
[image]
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Definition
| Lying in the same plane. For example, any set of three points in space are coplanar. |
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| Going in opposite directions |
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Intersection of Sets
The elements two or more sets have in common. Intersection is indicated by the ∩ (cap) symbol.
[image]
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