En resumen

Since that FG = FD = DG are diagonals of the squares, the figure FGD is a equilateral triangle. See also that such FGD has a E vertex (i. E. a tetrahedron FGD - E), for hence, since that the cube has 8 vertex, then there are 8 equilaterals triangles. P. D.

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C6rysoounson
6

Since that FG = FD = DG are diagonals of the squares, the figure FGD is a equilateral triangle.

See also that such FGD has a E vertex (i.

E. a tetrahedron FGD - E), for hence, since that the cube has 8 vertex, then there are 8 equilaterals triangles.

P. D.

Sorry for my English.