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13 November, 02:59

Determine the center and radius of the following circle equation:

x2 + y2 - 20x - 14y + 145 = 0

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Answers (1)
  1. 13 November, 05:27
    0
    Step-by-step explanation:

    compare with x²+y²+2gx+2fy+c=0

    center = (-g,-f) = (20/2,14/2) = (10,7)

    radius=√ (g²+f²-c) = √ (10²+7²-145) = √ (100+49-145)

    =√4

    =2
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