An octogon contains 6 equilateral triangles.
No.
Six equilateral triangles are found in a regular 6 sided hexagon
No but they will make a hexagon
1
6 polygon triangles make a hexagon
No.
Six equilateral triangles are found in a regular 6 sided hexagon
6
Join the 6 triangles like pizza slices
Equilateral triangles
There are 6 triangles
An octagon
No but they will make a hexagon
1
6 polygon triangles make a hexagon
octahedron
None but there are 6 in a regular hexagon