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1 December, 07:48

The equation of a circle is (x-20) ^2 + (y-.05) ^2=81. what is the radius

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  1. 1 December, 10:39
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    The radius is 9 units.

    Step-by-step explanation:

    As the equation for circle is (x-a) ² + (y-b) ² = r² where r reoresents the radius of circle:

    r² = 81

    r = √81

    = 9 units
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