In the circle shown, AD is a tangent and AC is a secant. If AB = 6 and BC = 18, what is the length of AD? B 08 O 10 12 A

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
In the circle shown, AD is a tangent and
AC is a secant. If AB = 6 and BC = 18,
what is the length of AD?
C
B
08
O 10
09
12
A
D
Transcribed Image Text:In the circle shown, AD is a tangent and AC is a secant. If AB = 6 and BC = 18, what is the length of AD? C B 08 O 10 09 12 A D
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