Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - Chapter Test - Page 75: 13



Work Step by Step

The Segment Addition Postulate tells us that $AE+EY=AY$ Since $AE=EY$, we can substitute AE for EY in the formula. $AE+AE=AY$ Combine like terms. $2AE=AY$ divide each side by 2 $2AE\div2=AY\div2$ $AE=\frac{1}{2}AY$
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