21. In the figure below, CDB, DBA, and CAD are all isosceles triangles and the length of segment BC is 4 ft. Determine the value of a in ft. D a a 4 ft a B A) 6.47 B) 6.06 C) 5.87 D) 6.25

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
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21. In the figure below, CDB, DBA, and CAD are all isosceles triangles and the length of segment BC is 4 ft.
Determine the value of a in ft.
D
a
4 ft
a
C
B
A) 6.47
в) 6.06
C) 5.87
D) 6.25
Transcribed Image Text:21. In the figure below, CDB, DBA, and CAD are all isosceles triangles and the length of segment BC is 4 ft. Determine the value of a in ft. D a 4 ft a C B A) 6.47 в) 6.06 C) 5.87 D) 6.25
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