Geometry: Common Core (15th Edition)

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

Chapter 4 - Congruent Triangles - 4-4 Using Corresponding Parts of Congruent Triangles - Lesson Check - Page 246: 2

Answer

SSS; corresponding parts of congruent triangles are congruent.

Work Step by Step

Two pairs of sides are marked as congruent, and the third sides of the triangles are congruent as well since this given side is a common side. Thus, the triangles are congruent by the SSS postulate. Since corresponding parts of congruent triangles are congruent, we know that angle U is also congruent to angle E.
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