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 - Practice and Problem-Solving Exercises - Page 231: 13


It is not possible to use SAS.

Work Step by Step

In order to use the SAS postulate, you must prove that two different sets of sides are congruent. Then, you must show that the angle joining those two sides is congruent for the two triangles as well. In this problem, it is not possible to show that R is congruent to T. Thus, it is impossible to use SAS.
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