Question 190348
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By definition of tangency, the line segment that connects the center of the circle with the point of tangency is at right angles to the tangent line.


That means that the tangent segment, the secant segment, and the radius segment form a right triangle with hypotenuse of 36 meters and one side 24 meters.


Use Pythagoras' Theorem.  You'll need to double your answer because you are looking for the radius.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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