[151.] PROBLEMA XXXIII.

[152.] PROBLEMA XXXIV.

[153.] PROBLEMA XXXV.

[154.] PROBLEMA XXXVI.

[155.] PROBLEMA XXXVII.

[156.] PROBLEMA XXXVIII.

[157.] PROBLEMA XXXIX.

[158.] ALITER.

[159.] ALITER.

[160.] PROBLEMA XL.

[161.] ALITER.

[162.] PROBLEMA XLI.

[163.] PROBLEMA XLII.

[164.] PROBLEMA XLIII.

[165.] PROBLEMA XLIV.

[166.] SCHOLIVM.

[167.] PROBLEMA XLV.

[168.] FINIS LIBRI TERTII.

[169.] GEOMETRIÆ PRACTICÆ LIBER QVARTVS.

[170.] AREAS

[171.] DE AREA RECTANGVLORVM Capvt I.

[172.] DE AREA TRIANGVLORVM Capvt II.

[173.] DE AREA QVADRILATERORVM non rectangulorum. Capvt III.

[174.] DE AREA MVLTIL ATERARVM figurarum irregularium. Capvt IV.

[175.] DE AREA MVLTILATERA-rum figurarum regularium. Capvt V.

[176.] De dimenſione circuli ex Archimede. Capvt VI.

[177.] PROPOSITIO I.

[178.] SCHOLIVM.

[179.] PROPOSITIO II.

[180.] COROLLARIVM.