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Mathematics 12 Online
OpenStudy (annabug):

line segment

OpenStudy (anonymous):

I think there is some theorem that says the segments created by intersecting secant lines are proportional

OpenStudy (annabug):

so 7 then?

Directrix (directrix):

If two segments intersect inside a circle, the product of the segments of one equals the product of the lengths of the other. See attachment.

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