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Warm Up 8/31/12. Pick an object in the real world (outside of this classroom) that represents each of the following Point Line Plane Intersecting lines Intersecting planes. Line Segment . Characteristics:
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Warm Up 8/31/12 Pick an object in the real world (outside of this classroom) that represents each of the following • Point • Line • Plane • Intersecting lines • Intersecting planes
Line Segment • Characteristics: • Definition: A segment is the part of a line consisting of two points, called endpoints, and all points between • Symbolically:
Ray • Characteristics: • Definition: A ray is the part of a line consisting of one endpoint and all the points of the line on one side of the endpoint. • Symbolically:
Midpoint • Characteristics: • Definition: The point that divides a segment in half • Symbolically:
Parallel Lines • Characteristics: • Definition: Lines the lie in the same plan and do not intersect • Symbolically:
Congruent Segments • Characteristics: • Definition: Segments that have the same length • Symbolically:
Bisector of a segment • Characteristics: • Definition: a line, segment, ray or plane that intersects a segment at its midpoint • Symbolically: