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3.4 Practice: Parallel and Perpendicular Lines
1. A developer is planning a new housing complex.
The map of the complex is shown at the right.
Assume that all streets lie in a plane.
a. If Washington and Lincoln Streets are to be
parallel, what must be true of and?
b. Which streets must be parallel if ?
Justify your answer.
c. If = 90 and your answers to parts (a) and (b) are true, to what roads is Eagle Road perpendicular?
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