In 1496, Leonardo da Vinci met the mathematician Luca Pacioli (an Italian mathematician, educator, and Franciscan friar) when they both worked for Ludovico Sforza, the Duke of Milan. Over the following five years, Leonardo and Pacioli worked, lived and traveled together. Amongst many other things, Leonardo was interested in geometry, and in particular, the construction of regular polygons. He knew approximate constructions used by engineers and craftsmen and tried devising constructions of his own, both exact and approximate. Pacioli may have given lessons in Euclidean geometry.

Task 1 Origami challenge

Task 2 Golden ratio

Task 3 Celebrating a Pi day