In the figure below, the segments \overline{DE} and \overline{DF} are tangent to the circle centered at O. Given that $DF = 6.3$ and $OD = 8.7$, find $OE$.
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Step 1: Since DE and DF are tangent to the circle, we can use the tangent-secant theorem which states that if a tangent and a secant, or two tangents, are drawn to a circle from an external point, then the square of the length of the tangent is equal to the Show more…
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