Which of the following is not true about the voids formed in three dimensional hexagonal close packed structure?

Tetrahedral voids are formed when the sphere of the second layer lie exactly above the triangular voids in the first layer.Octahedral voids are formed when triangular void of second layer lie above the triangular voids in the first layer but it does not cover the void completely.The triangular shape of there voids are opposite of each other.