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anonymous
 one year ago
HELP PLEASE!!!!
http://media.education2020.com/evresources/2092499_40a8915b80e346dca1495261526d5c6b.png
secant DB intersects DZ at point D Find the length of DA
A. 0
B. 1
C. 3
D. 9
anonymous
 one year ago
HELP PLEASE!!!! http://media.education2020.com/evresources/2092499_40a8915b80e346dca1495261526d5c6b.png secant DB intersects DZ at point D Find the length of DA A. 0 B. 1 C. 3 D. 9

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perl
 one year ago
Best ResponseYou've already chosen the best response.0If two secant segments are drawn from a point outisde a circle, the product of the lengths(C+D) of one secant segment and its exteranal segment(D) equals the product of the lengths (A+B) of the other secant segment and its external segment (B). http://www.mathwarehouse.com/geometry/circle/tangentsecantsidelength.php

perl
 one year ago
Best ResponseYou've already chosen the best response.0plug your values into that formula and solve for x.
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