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Help? I don't know how to do this question

Guest May 10, 2017
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Help? I don't know how to do this question

 

Tangent Secant Theorem

 

\(\overline{AD}^2 = \overline{AB} \cdot (\overline{AB} + \overline{BC}) \\ \overline{AD}^2 = 16 \cdot (16 +9) \\ \overline{AD}^2 = 16 \cdot 25 \\ \overline{AD} = 4 \cdot 5 \\ \overline{AD} = 20 \)

 

 

laugh

heureka  May 10, 2017

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