what is the equation of circle? Please solve as soon as possible.
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EQUATION OF A CIRCLE. 2) The general form : x2 + y2 + Dx + Ey + F = 0, where D, E, F are constants. If the equation of a circle is in the standard form, we can easily identify the center of the circle, (h, k), and the radius, r . Note: The radius, r, is always positive.
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Answer:
Area= pi*r^2
perimeter= 2pi*r
hope this is what you wanted to know
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