Answer
$NM = \frac{1}{3}a+\frac{1}{2}b$
Work Step by Step
We can find the length of NM:
$NM = NB + BM$
$NM = (AB-AN)+BM$
$NM = (a - \frac{2}{3}a)+\frac{1}{2}b$
$NM = \frac{1}{3}a+\frac{1}{2}b$
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 1 - Section 1.3 - Early Definitions and Postulates - Exercises - Page 28: 41
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