Page 36 - NUMINO Challenge_A2
P. 36
In a Nutshell A Shape Made with Four Equilateral Triangles
Add one equilateral triangle to the shape made up of three equilateral
triangles to make a new figure.

How many different shapes can be made by connecting four equilateral
triangles?

Polyiamond
A shape made up of several equilateral triangles of the same size
is called a polyiamond. A shape made up of two equilateral
triangles is called a diamond. A shape made up of three
equilateral triangles is called a triamond, and a shape made up of
four equilateral triangles is called a tetriamond.

33Geometry
   31   32   33   34   35   36   37   38   39   40   41