Elementary Geometry for College Students (6th Edition)

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

Chapter 2 - Section 2.5 - Convex Polygons - Exercises - Page 101: 31


a.) The angles measure 120$^{\circ}$ b.) The angles measure 135$^{\circ}$

Work Step by Step

The sum of the interior angles of a pentagon is 540$^{\circ}$. a.) 3$\angle$+90+90=540 3$\angle$=360 $\angle$=120$^{\circ}$ b.) 2$\angle$+90+90+90=540 2$\angle$=270 $\angle$=135$^{\circ}$
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