## Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole

# Chapter 10 - Review Exercises - Page 486: 31a

#### Answer

$d = \sqrt{(a+c)^2 + (b+d-2e)^2}$

#### Work Step by Step

We find the median of AC: $M = (\frac{2a+2c}{2}, \frac{2b+2d}{2}) = (a+c,b+d)$ We now use the distance formula: $d = \sqrt{(a+c)^2 + (b+d-2e)^2}$

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