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Mathematics 13 Online
OpenStudy (anonymous):

AB is tangent to circle O at B. How close to the circle is point A? (The diagram is not to scale)

OpenStudy (anonymous):

OpenStudy (anonymous):

4.5

OpenStudy (mertsj):

Find r using the Pythagorean theorem. Subtract r from 7.5 and you will have the distance of point A to the circle.

OpenStudy (mertsj):

r=4.5 7.5-4.5=3 and that is the distance from A to the circle.

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