MATHEMATICS AND ORIGAMI

Mathematics and Origami

• The lateral side (see Fig. 1) is: ()
  2

3

1 2

2

1 2

+ =

• The pyramid ́s altitude is (Fig. 5):
  2

1

2

2

2

3

2 2

 =













 −













H=

• The dihedral angle whose side is the side of the pyramid ́s base is: α = 45º (it
  pertains to an isosceles right triangle)

2

1

1

2

3

6