## Geometry: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 2 - Reasoning and Proof - 2-5 Reasoning in Algebra and Geometry - Practice and Problem-Solving Exercises - Page 119: 38

90

#### Work Step by Step

Use the Angle Addition Postulate and substitution to find $m\angle BOE$. Use $m\angle DOB$ found in the previous problem. $m\angle BOE=m\angle DOB+m∠EOD=65+25=90$

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