Area + Diameter - Circumference = 4Just observe the above setup equation in terms of circle

Area calculation always involves the \(\pi\) factor. Example, \(\pi r^2\) etc for whatever the radius may be.

Similarly, Circumference calculation always involves again the \(\pi\) factor. Example, \(2\pi r\) for whatever the radius may be.

Now the resultant of all this ideally should have a \(\pi\). However , the resultant returned = 4.

It means the \(\pi\) factor is cancelled out in the calculation which also means Area of the given circle = circumference of the given circle. Area of Circle = Circumference of circle: Happens only when Radius = 2In this case, Diameter = 4; so \(radius = \frac{4}{2} = 2\)

Answer = B

Bunuel/Experts: Kindly let me know if above argument holds value for calculation purpose in this question? Thank you

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