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It has 20 congruent equilateral triangles as faces?
Icosahedron
What shape has 20 congruent equilateral triangles as faces?
An Icosahedron.
It has 4 faces which are congruent triangles?
An equilateral triangular pyramid
What 3d shape has 20 congruent equilateral triangles as faces?
An icosahedron.
8 congruent equilateral triangles as faces and 6 vertices?
octahedron
What is a Polyhedron with eight sides that are triangles?
Octahedron- A polyhedron with eight faces. All faces of a regular octahedron are congruent, equilateral triangles.
How many congruent faces are on a triangular prism?
The minimum numbers of congruent faces are as follows: On an equilateral triangular prism: one pair of triangles On a right equilateral triangular prism: one pair of triangles and one triplet of rectangles.
What is name of a shape with twenty congruent equilateral triangles as faces?
This shape is called a Icosahedron , I think.
What is a special pyramid whose faces are all congruent equilateral triangles?
It is a regular triangle pyramids
What has 8 congruent equilateral triangles as faces and 6 vertices?
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 do the regular tetrahedron octahedron and icosahedron have in common?
Their faces are equilateral triangles.
What is a triangular pyramid called?
A tetrahydron is a triangular pyramid having congruent equilateral triangles for each of its faces.
