1 Lines.notebook February 04, 2014 Lines, Line Segments and Rays A B A line- is a straight path that has no beginning and continues without end in both directions. We say line AB or line BA Lines, Line Segments and Rays A line segment is part of a line. It has two end points. We say line segment CD or line segment DC C D A light beam is a ray. A ray is a part of a line. It has one end point and continues without end in one direction. We say ray EF. E F
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1 Lines.notebook February 04, 2014
Lines, Line Segments and Rays
A B
A line- is a straight path that has no beginning and continues without end in both directions.
We say line AB or line BA
Lines, Line Segments and Rays
A line segment is part of a line. It has two end points. We say line segment CD or line segment DC
C D
A light beam is a ray.
A ray is a part of a line. It has one end point and continues without end in one direction. We say ray EF.
E F
1 Lines.notebook February 04, 2014
Two lines on the same plane that never meet are parallel lines.
A
B C
D
These symbols tell us that the lines are parallel.
AB DC
Symbol:
Two lines that meet and make a square corner or 90 degree angle are perpendicular lines.
Means perpendicular
A
BC
Symbol
AB BC
Skew lines - are lines not in the same plane that never intersect
A B
C
D
EF
G
H
1.) Name all segments that intersect DE
2.) Name all segments that are parallel to DE
3.) Name all segments that are skew to DE
1 Lines.notebook February 04, 2014
Write an equation to solve. Find the length of each segment.
A B C4 5x
7x
x = AB = BC = AC =
A B C3x 2x +1
6x 3
x = AB = BC = AC =
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