A strange 300-foot pattern of circles and lines recently appeared in a farmer's field in the English countryside near Wiltshire, a place long associated with mysteries such as crop circles and ...
To find the equation of a circle when you know the radius and centre, use the formula \({(x - a)^2} + {(y - b)^2} = {r^2}\), where \((a,b)\) represents the centre of the circle, and \(r\) is the ...
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