Elementary Geometry for College Students (5th Edition)

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

Chapter 2 - Section 2.4 - The Angles of a Triangle - Exercises - Page 98: 33a

Answer

See picture
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Work Step by Step

Obtuse triangles are triangles with angles which are $\gt$ 90$^{\circ}$. Isosceles triangle means 2 sides of the triangle are the same length.
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