Best Answer

Octohedron, or rhomboid.

Q: You are a polyhedron all faces are the same all faces are equilateral triangles i have 8 faces?

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tetrahedron

A regular octahedron.

Octohedron, or diamond

A solid with 8 faces is an octahedron.As all faces are the same it is a regular octahedron.As such it is one of the five platonic solids - the only five 3D objects that can be regular: the tetrahedron (4 equilateral triangles for the faces), the hexahedron (usually called a cube with 6 square faces), the octahedron (as asked, 8 equilateral triangles for the faces), dodecahedron (12 regular pentagons as faces), icosahedron (20 equilateral triangles as faces).

An octahedron formed by joining together (base-to-base) two square-based pyramids.

Related questions

An octahedron.

tetrahedron

What polyhedron has eight sides and all of the are equilateral triangle?

You're an octagon.

A regular octahedron.

A regular octahedron.

A regular octahedron.

Princess cut diamonds

pentagon

its a dedrehedron * * * * * Sadly, a dedrehedron does not exist. Fotunately, though, a regular octahedron does and it meets the specifications in the question.

that's easy its a triangle * * * * * That is such a nonsensical answer! A triangle is not even a polyhedron. The correct answer is an octahedron - two square based pyramids stuck together along their bases.

Octohedron, or diamond