Geometry: Common Core (15th Edition)

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

Chapter 2 - Reasoning and Proof - 2-3 Biconditionals and Definitions - Lesson Check: 5

Answer

The statement is a poor definition because it is not precise and is not reversible.

Work Step by Step

Gigantic is a vague term. It could mean more than 500 pounds, or it could mean more than 2000 pounds. A definition should use precise terms. The statement is not reversible. There are other gigantic animals that are not elephants.
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