Leonardo da Vinci briefly studied geometry with Franciscan friar, Luca Pacioli (ca. 1445-1509) who is best known for his compendium of fifteenth century mathematics, Summa de arithmetica, geometrica, proportioni et proportionalita (1494). Being an artist, Da Vinci had chosen to focus mainly on the shape, size, and descriptive features of objects specifically, those illustrating the