   Chapter 10.CT, Problem 12CT Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

Which formula (by name) is used to establish thata) two lines are parallel?b) two line segments are congruent?

To determine

(a)

To find:

The formula used to establish that two lines are parallel.

Explanation

If two lines are parallel, then their slopes are equal.

Let the slope of line 1 be m1.

Let the slope of line 2 be m2

To determine

(b)

To find:

The formula used to establish that two lines are congruent.

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