In the figure below, a tangent and a secant are drawn to a circle from exterior point E. Suppose that EC= 10.8 and EG= 18. Find CD.

Blackbelt asked Apr 7, 2022

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Blackbelt asked Apr 7, 2022

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13 votes

Answer: 19.2

Explanation:

Using power of a point with respect to a circle:

EG²=EC*ED ==> ED=18²/10.8=30

CD=ED-EC=30-10.8=19.2

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