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11 May, 09:30

Which equation is an equation of a circle with a radius of 10cm and center at (-3,6)

(x-3) ^2 + (y+6) ^2=100

(x-3) ^2 + (y+6) ^2=20

(x+3) ^2 + (y-6) ^2=20

(x+3) ^2 + (y-6) ^2=100

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Answers (1)
  1. 11 May, 12:03
    0
    The equation of a circle with center at (h, k) and radius of r is

    (x-h) ^2 + (y-k) ^2=r^2

    so

    (-3,6) and radius is 10

    (x - (-3)) ^2 + (y - (6)) ^2=10^2

    (x+3) ^2 + (y-6) ^2=100

    last one
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