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If m 42 = 112°, then m 47 = 2 + 36 78 B C

If m 42 = 112°, then m 47 = 2 + 36 78 B C

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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Question
If m 42 = 112°, then m 27 = T 2 3 4 ✈ 3 78 B C 4
Transcribed Image Text:If m 42 = 112°, then m 27 = T 2 3 4 ✈ 3 78 B C 4
Expert Solution
Step 1

Given:

Geometry homework question answer, step 1, image 1

As we know from the alternate exterior angle theorem, if L1∥L2 then

m∠2=m∠7m∠1=m∠8

To calculate the angle m∠7.

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