12. If mDA = (23x – 14), mDB = (9x- 4)°, and MZDCB = (5x + 11)', find mDA. %3D %3D D B

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
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12. If mDA = (23x - 14)', mDB = (9x – 4)°, and MZDCB = (5x + 11)°, find mDA.
%3D
16 and M0RS = (5x – 3)°, find mQTS.
Transcribed Image Text:12. If mDA = (23x - 14)', mDB = (9x – 4)°, and MZDCB = (5x + 11)°, find mDA. %3D 16 and M0RS = (5x – 3)°, find mQTS.
13. If mQTS = (16x + 23)°, mQS = (7x + 15)°, and mzQRS = (5x – 3)°, find MQTS.
T.
S.
O Gina Wilson (All Things Alge
Transcribed Image Text:13. If mQTS = (16x + 23)°, mQS = (7x + 15)°, and mzQRS = (5x – 3)°, find MQTS. T. S. O Gina Wilson (All Things Alge
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