Angles And Parallel Lines Worksheet With Answers Page 17
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B. Parallel and Perpendicular Lines
Parallel lines are lines that are always the same distance apart. Parallel lines
will _____________ cross. A short form way of indication that lines are parallel is
to use the symbol ∥. So if you read the following: AB∥CD, it would mean that line
AB is parallel to line CD.
Arrows on the lines are also used to show that the lines are parallel.
We have already discussed perpendicular lines. Perpendicular lines are lines
that meet at a right angle (_____). The symbol to show that two lines are
perpendicular when writing about them is ⏊. So to say that line EF is
perpendicular to line GH you might see the following: EF ⏊ GH.
The little box in the corner of a right angle also illustrates this.
Example 2
Using a protractor, determine which of the following lines are perpendicular.
Worksheet: Perpendicular and Parallel Lines
Math 10 Workplace
Marsh
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