Geometry: Common Core (15th Edition)

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

Chapter 4 - Congruent Triangles - 4-5 Isosceles and Equilateral Triangles - Practice and Problem-Solving Exercises - Page 254: 14

Answer

Base angles are 52 degrees

Work Step by Step

76 + 𝑥 + 𝑥 = 180 76 + 2𝑥 = 180 2𝑥 = 104 𝑥 = 52 degrees
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