Elementary Geometry for College Students (5th Edition)

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

Chapter 1 - Section 1.7 - The Formal Proof of a Theorem - Exercises: 20


$x=8$ $m\angle(2)=56^{\circ}$

Work Step by Step

Since $\angle(2)$ equals $\angle(4)$, you can set up the same equation from the last exercise with the angle measurements: $6x+8=7x$ $8=(7x-6x)=x$ Now you can plug in the value for $x$ again to find $m\angle(2)$: $m\angle(2)=(6x+8)^{\circ}$ $m\angle(2)=(6(8)+8)^{\circ}$ $m\angle(2)=(48+8)^{\circ}$ $m\angle(2)=56^{\circ}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.