Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 3 - Section 3.3 - Isosceles Triangles - Exercises - Page 146: 25

Answer

m$\angle$5=124$^{\circ}$

Work Step by Step

m$\angle$3=m$\angle$2=68$^{\circ}$ m$\angle$1+m$\angle$2+m$\angle$3=180 m$\angle$1+68+68=180 m$\angle$1=44$^{\circ}$ .5m$\angle$1+.5m$\angle$3+m$\angle$5=180 22+34+m$\angle$5=180 m$\angle$5=124$^{\circ}$
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