It is a regular octahedron.
Octahedron- A polyhedron with eight faces. All faces of a regular octahedron are congruent, equilateral triangles.
You're an octagon.
Their faces are equilateral triangles.
Equilateral triangles
equilateral triangles-Apex ;)
tetrahedron
Assuming that "equal ladder" is meant to be equilateral, the answer is a tetrahedron, one of the 5 Platonic solids.
octahedron
it is afrog
Tetrahedron, Hexahedron(cube), Octahedron, Dodecahedron, and Icosahedron
Octahedron- A polyhedron with eight faces. All faces of a regular octahedron are congruent, equilateral triangles.
tetrahedron
An octahedron.
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).
What polyhedron has eight sides and all of the are equilateral triangle?
You're an octagon.
A regular octahedron.