## Elementary Geometry for College Students (7th Edition)

Published by Cengage

# Chapter 4 - Review Exercises - Page 217: 20

14.9 cm

#### Work Step by Step

Theorem 4.4.3: The length of the median of a trapezoid equals one-half the sum of the lengths of the two bases. $12.3+17.5=29.8\div2=14.9$

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