Geometry: Common Core (15th Edition)

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

Chapter 2 - Reasoning and Proof - 2-1 Patterns and Inductive Reasoning - Practice and Problem-Solving Exercises - Page 85: 23

Answer

purple

Work Step by Step

The pattern goes as follows purple, red, and green. If you write that pattern down, you will find that the answer will be purple after writing the colors thirteen times.
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