by a straight line that forms the hypotenuse of a right angle triangle with sides of length \(x\) and \(y\). This means that, using Pythagoras’ theorem, the equation of a circle with radius \(r ...
by a straight line that forms the hypotenuse of a right angle triangle with sides of length x and y. This means that, using Pythagoras’ theorem, the equation of a circle with radius r and centre ...
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