⁸³⁰cuius diameter A   cuius diameter sit S
⁸³¹ante et del. s A
⁸³²primum A   primo S
⁸³³Recta A   latus rectum S
⁸³⁴ad rectum angulum applicatae A   in recto angulo applicatae sint ad diametrum S
⁸³⁵1/4 gh A   quarta pars ds S
⁸³⁶gh A   ds S
⁸³⁷gd ea A   dg ea S
⁸³⁸media proportionalis A   media fiat proportionalis S
⁸³⁹17^am 6ⁱ A   12. 6. S
⁸⁴⁰minor, quam A   minor est, quam S
⁸⁴¹quadruplum A   quadrumplum erit S
⁸⁴²post ez del. aequales A
⁸⁴³17^am 6ⁱ A   12. 6. S
⁸⁴⁴sicut A   est sicut S
⁸⁴⁵ post corr. A   ad S
⁸⁴⁶recta diameter A   rectum latus S
⁸⁴⁷parabolae A   paraboles S
⁸⁴⁸ergo A   est ergo S
⁸⁴⁹Sed A   Sed iam S
⁸⁵⁰iam A   om. S
⁸⁵¹Et A   om. S
⁸⁵²1/2 A   dimidium S
⁸⁵³le A   ecl S
⁸⁵⁴lcm A   mcl S
⁸⁵⁵aequalis A   aequalis est S
⁸⁵⁶cl A   el S
⁸⁵⁷tab A   tb S
⁸⁵⁸bifariam enim A   quae bifariam S
⁸⁵⁹sicut A   est sicut S
⁸⁶⁰Quare A   Quare dg, quae est S
⁸⁶¹factum A   factum est S