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22 March, 02:09

Write the equation of a circle that has a center at the origin and a radius with a length of 3 inches.

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  1. 22 March, 02:11
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    hello:

    an equation of the circle Center at the A (a, b) and ridus : r is:

    (x-a) ² + (y-b) ² = r²

    in this exercice : a = 0 and b = 0 and r=3 (Center at the origin: A=O) is : x²+y² = 9
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