Segment relationships in circles help please :)

Algebra
Tutor: None Selected Time limit: 1 Day

Apr 25th, 2015

When two secant lines intersect each other outside a circle, the products of their segments are equal.

So,

AB*AC=AE*AD

4*(4+3)=5*AD

4*7=5*AD

5AD=28

AD=28/5

AD =5.6


ANSWER:  C)  5.6

Apr 25th, 2015

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