Hexahedron | English | Two triangular pyramids on top of each other
Channel: Arvind Gupta
Date: 15/04/2015

You might have seen the octahedron but today we are going to make a hexahedron with a square paper. It is an amazing structure with two triangular pyramids sitting on top of each other. The base of the triangular pyramid is an equilateral triangle and side of the triangles are rt equilateral triangles.


First take the square paper and fold it in three parts on both sides. You will thus have divided your square paper in 9 equal smaller squares. Now fold it along the diagonal and fold the other two corners on the sides to get a boat shape.
Crease the bottom part of the boat on both sides and open the corners inside out as shown. This is the most tricky fold.
Repeat this for the other side of the boat.
You will get a square with two triangles protruding out. Fold each of the triangles inside the square one on each side. 

Now all you need to is push this square by pressing the two opposite corners and the hexahedron opens up with a popping sound.

So enjoy playing with this wonderful dual triangular pyramid also called the hexahedron.

Interesting activity will be find out the height of this hexahedron. This work was supported by IUCAA and Tata Trust. This film was made by Ashok Rupner TATA Trust: Education is one of the key focus areas for Tata Trusts, aiming towards enabling access of quality education to the underprivileged population in India. To facilitate quality in teaching and learning of Science education through workshops, capacity building and resource creation, Tata Trusts have been supporting Muktangan Vigyan Shodhika (MVS), IUCAA's Children’s Science Centre, since inception. To know more about other initiatives of Tata Trusts, please visit www.tatatrusts.org