Term
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Definition
| A point B is "between" two other points A and C if they are all collinear and you must pass through B to get from A to C. |
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Term
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Definition
| A term which has no definition. The undefined terms in Chapter 1 are Point, Line, Plane. |
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Term
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Definition
| An undefined term. Consists of at least 3 NONCOLLINEAR points. Is named by 3 points. Has length and width. Continues on forever in all directions. |
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Term
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Definition
| An undefined term. Has no dimension. Is denoted on paper by a dot, labeled with a capital letter. |
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Term
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Definition
| An undefined term. Must contain at least two points. Goes on forever in both directions. Has length. Is named by any two points on the line. |
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Term
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Definition
| The portion of a line containing one endpoint and all other points on one side of the line. Named by the endpoint and another point it goes through. Endpoint letter must come first! |
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Term
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Definition
| The portion of a line containing the endpoints and all the points between them. Named by the endpoints (in either order). |
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Term
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Definition
| Two figures intersect if they have one or more points in common. The intersection of two lines is a point. The intersection of two planes is a line. The intersection of a line and a plane is a point OR a line. |
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