What then becomes apparent is that this could be a key to the formula (pi.r) squared. Take any diameter, perform the calculation and divide the answer by pi as 256/81:
Diameter 6, answer = 9
Diameter 8, answer = 16
Diameter 10, answer = 25
Diameter 14, answer = 49
Need I go on? I imagine it possible that someone would have seen the significance of this, and all that’s missing now is naysayers demanding proof.