Answer
Distance formula
Work Step by Step
The distance formula is used to find the length of a line. Thus, if we want to verify the length of this line, we must use the distance formula.
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 10 - Section 10.3 - Preparing to Do Analytic Proofs - Exercises - Page 474: 32d
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