No but they will make a hexagon
8
An octogon contains 6 equilateral triangles.
1
Join them together
6 straight lines drawn inside of an octagon will divide the octagon into 8 triangles
There are 6 triangles in an octagon
8
There are 6 triangles in an 8 sided octagon
Join the 6 triangles like pizza slices
An octogon contains 6 equilateral triangles.
1
Join them together
6 straight lines drawn inside of an octagon will divide the octagon into 8 triangles
Sort of depends on how the two triangles are beforehand. One nice way to make four equilateral triangles from six matchsticks is to make a tetrahedron (a triangular pyramid).
There are 6
No.
It takes 6 triangles and 6*180 = 1080 degrees which are the total degrees in an 8 sided octagon