Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 4 - Section 4.4 - The Trapezoid - Exercises - Page 200: 1


m$\angle$D=122$^{\circ}$ m$\angle$B=55$^{\circ}$

Work Step by Step

m$\angle$A+m$\angle$D=180 m$\angle$D=180-58 m$\angle$D=122$^{\circ}$ m$\angle$B+m$\angle$C=180 m$\angle$B+125=180 m$\angle$B=180-125 m$\angle$B=55$^{\circ}$
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