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.
Each face is an equilateral triangle.
a pyramid where each face is the shape of a triangle
Oh, dude, an equilateral triangle has 3 vertices, 3 faces (which are also the sides), and 3 edges. It's like the most balanced shape ever, so chill.
A Platonic solid is a solid all of whose face are regular and congruent polygons.There are five of these:A Tetrahedron. Four faces, each an equilateral triangle.Ad InfoA Hexahedron (Cube). Six faces, each a square.An Octahedron. Eight faces, each an equilateral triangle.A Dodecahedron. Twelve faces, each a regular pentagon.An Icosahedron. Twenty faces, each an equilateral triangle.
All faces on a cube are equal to each other the shape is of the face on a cube is a square
equilateral triangle
An equilateral triangle.
Each face is an equilateral triangle.
One face that is the equilateral triangle.One face that is the equilateral triangle.One face that is the equilateral triangle.One face that is the equilateral triangle.
The figure described is a polyhedron. It is a tetrahedron known as a triangular pyramid.
The shape with four triangular faces that are all equilateral is a tetrahedron. A tetrahedron is a type of polyhedron that has four vertices, six edges, and four triangular faces. Each face is an equilateral triangle, making it one of the simplest three-dimensional shapes.
A tetrahedron is a four sided polyhedron. Each face is a triangle. If it is a regular tetrahedron, then each face is an equilateral triangle.
An icosahedron is a regular polyhedron with 20 equilateral triangle faces.
Area of an equlateral triangle = 0.5*side2*sin(60)
A regular octahedron is one of the platonic solids. Each of its faces is an equilateral triangle.
None. Each face is an equilateral triangle.
A tetrahedron, or triangular pyramid, has four congruent equilateral triangles as its faces. Each face is an equilateral triangle, and the tetrahedron is a three-dimensional shape with four vertices and six edges. This symmetry gives the tetrahedron its unique geometric properties.