Question

circle in the xy‑plane has the equation (x+92)^2+(y+54)^2=73. What is the length of the diameter of the circle?

Answer 1

we know that the simple equation of a circle is (x-α)^2-(y-ß)^2=a^2
here a is the radius of the circle
so the radius is √73
so the diameter of a circle is 2x√73 or√(4x73) or √292 or 17.09(approx)
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Answer 2

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