Geometry: Common Core (15th Edition)

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

Chapter 4 - Congruent Triangles - 4-2 Triangle Congruence by SSS and SAS - Lesson Check: 4

Answer

Side-Side-Side Postulate

Work Step by Step

In the diagram shown, there are two pairs of congruent sides. The third side of one triangle is the same side as the third side of the other triangle. Therefore, by the Reflexive Property of Congruence, that side is equal to itself, letting us prove that the two triangles are congruent by the Side-Side-Side Postulate.
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