Propositiones ad Acuendos Juvenes/Problems/25 - De Campo Rotundo/Historical Note

== Historical Note on by : Problem $25$: De Campo Rotundo == The area $\AA$ of a circle in terms of its circumference is:
 * $\AA = \dfrac {C^2} {4 \pi}$

However, what has done is used a value for $\pi$ of $4$.

The actual value (assuming $144$ square perches to the acre) is approximately $88.4$ acres.

Another translator uses a tortuous method to obtain $\AA = 96$ acres, but this uses a value for $\pi$ of $3$.