Can you name the 3-dimensional shape with 20 congruent triangles as faces?
It is called an Icosahedron. An example could be the 20-sided die, if you have seen those before.
A pentagonal prism, a hexagonal pyramid, a cube with one vertex (corner) cut off, a tetrahedron with three vertices cut off - these are some of the possibilities.
The Platonic solid known as an octahedron would fit the given description
An right equilateral triangular prism.
square based pyramid
a square pyramid
A four sided figure would be a tetrahedron and a 20 sided would be an icosahedron. They both have equilateral triangles for faces so your question is a little incomplete.
Triangular Prism, Triangular Pyramid.
A prism??? O.o sounds like it to me anyway...
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… Read More
A cube, rectangular prism, or pyramid.
yes there are shapes called 3 congruent figures
Isosceles Tetrahedron A solid with four faces is a tetrahedron. Each of the faces is a triangle. If all the triangles are congruent, you have an isosceles tetrahedron.
An icosahedron is a regular polyhedron with 20 equilateral triangle faces.
A hexagon based pyramid.
A ditetrahedron (two triangular pyramids stuck together base-to-base) or, more boringly, a cube.
a cylinder has two faces that are circles
The simplest shape is a hexagonal prism.
triangle based pyramid
A Cuba has 6 congruent faces
A triangular prism. :)
A cube satisfies that description.
A REGULAR SQUARE PYRAMID.
If the triangles are congruent then it is a triangular-based prism.
A tetrahedron (4 faces) and an icosahedron (20).
A triangular prism.
No. Every solid shape has at least one face. The closest you will get is a sphere, which has no edges or vertices, but it still has a face.
The answer is a polyhedron
triangular pyramid and cube.