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Geometry 14 Online
OpenStudy (anonymous):

If AC = 25 mm and AB = 15 mm, calculate the length of AD.

OpenStudy (anonymous):

OpenStudy (raden):

AD * AC = AB^2 AD * 25 = 15^2 solve for AD

OpenStudy (anonymous):

AD= 9 ?

OpenStudy (raden):

that's right

OpenStudy (anonymous):

How do we get that relation ?

OpenStudy (raden):

that must be in your book, right ? read about secant theorem

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