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Mathematics 21 Online
MusicGeek:

a park downtown has a circular fountain with a walkway that runs tangent to the fountain. you want to find the radius of the fountain using indirect measurement. you stand on the walkway at point 16 meters from where it meets the fountain. this point is represented by C in the diagram below and is 9 meters from the edge of the fountain. knowing line CB is tangent to the circle, find the radius, r, of the fountain.

MusicGeek:

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