An octahedron - which is like two rectangular pyramids whose bases have been stuck together.
diamond/octahedron
Octohedron, or rhomboid.
A regular octahedron.
A regular octahedron or a square based dipyramid.
octahedron
octahedron
diamond/octahedron
an octahedron
a regular octahedron
Octohedron, or rhomboid.
A regular octahedron.
Octahedron- A polyhedron with eight faces. All faces of a regular octahedron are congruent, equilateral triangles.
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A regular octahedron or a square based dipyramid.
octahedron
it is afrog
Yes: the tetrahedron.