Four triangles can be made from six matches as follows:

 

Step 1

 

Take 6 matches.

How to make 4 triangles from 6 matches

4 triangles from 6 matches. Step 1

Step 2

 

Make a triangle from 3 matches.

How to make 4 triangles from 6 matches

4 triangles from 6 matches. Step 3

Step 3

 

Put the other three matches with their one end to the vertices of the triangle and lean their other ends against one another.

As a result, we will get a triangular pyramid from 6 matches. The pyramid consists of four triangles: 1 triangle in the base, 3 triangles are the faces of the pyramid.

How to make 4 triangles from 6 matches

How to make 4 triangles from 6 matches. Step 3