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15. m/DBC = Given that DA = DC, m / DBC = (10y + 3)°, and m/DBA = (8y + 10)°, find m/DBC. B C

15. m/DBC = Given that DA = DC, m / DBC = (10y + 3)°, and m/DBA = (8y + 10)°, find m/DBC. 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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15. m/DBC = Given that DA = DC, m / DBC = (10y + 3)°, and m/DBA = (8y + 10)°, find m/DBC. Choose the best answer choice for the following. 16. B F. m/DEF = m / DEG G. m/ FEG = m / DEF H. m/GED = m / GEF m/DEF=m/EFG J. 4 C What information is needed to conclude that EF is the bisector of ZDEG?
Transcribed Image Text:15. m/DBC = Given that DA = DC, m / DBC = (10y + 3)°, and m/DBA = (8y + 10)°, find m/DBC. Choose the best answer choice for the following. 16. B F. m/DEF = m / DEG G. m/ FEG = m / DEF H. m/GED = m / GEF m/DEF=m/EFG J. 4 C What information is needed to conclude that EF is the bisector of ZDEG?
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