Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 3 - Section 3.5 - Inequalities in a Triangle - Exercises - Page 165: 21

Answer

The largest angles of the triangle are 72$^{\circ}$ and the smallest angle of the triangle is 36$^{\circ}$.

Work Step by Step

The angle with a measure of 36 degrees must be the vertex angle because it is an acute triangle and the vertex would be obtuse otherwise. base angle=.5(180-36) base angle=.5(144) base angle=72$^{\circ}$ 72$^{\circ}$$\gt$36$^{\circ}$
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