m. 20 B. Circle A. shown, has diameter DE. The following angle measures are known: mZEAF 30°. m/FDB -20°, and m/CDE-40°. Using theorems, find the arc and angle measures indicated. degrees degrees mZDER degrees dy

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
Question
m.
20
B.
Circle A. shown, has diameter DE. The following angle measures are known: mZEAF 30°.
m/FDB
-20°, and m/CDE-40°.
Using theorems, find the arc and angle measures indicated.
degrees
degrees
mZDER
degrees
dy
Transcribed Image Text:m. 20 B. Circle A. shown, has diameter DE. The following angle measures are known: mZEAF 30°. m/FDB -20°, and m/CDE-40°. Using theorems, find the arc and angle measures indicated. degrees degrees mZDER degrees dy
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