Area of a circle is $A = \pi r^2$. Is it possible that both $A$ and $r$ are perfect integers.

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Can you produce an example where both the area of a circle and it's radius are integers?

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$$r\neq 0\;,\;\pi r^2\;,\;r\in\Bbb N\implies \pi\in\Bbb Q\;,\;\text{which is false}$$