It could be a cone
A truncated tetrahedron.
I cannot think of any 2-d shape. The 3-d shape with four faces is a tetrahedron.
Tetra = four. It is a 3-d shape with 4 faces.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. They can have faces which are triangles, quadrilaterals, pentagons, hexagons or heptagons,
It could be a cone
A truncated tetrahedron.
There is no 3D shape with 6 faces: 4 rectangles and 2 triangles. See the link for all forms of hexahedra.
A tetrahedron, an octahedron or an icosahedron,
I cannot think of any 2-d shape. The 3-d shape with four faces is a tetrahedron.
tetrahedron
It doesn't exist. The least number of sides for a 3-D shape only made of triangles is 4.
A cuboid, on its base, is a 3-d shape and four of its edges are vertical.
Tetra = four. It is a 3-d shape with 4 faces.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. They can have faces which are triangles, quadrilaterals, pentagons, hexagons or heptagons.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. They can have faces which are triangles, quadrilaterals, pentagons, hexagons or heptagons,
Hello, a 4-d shape is a shape that nobody knows, i do though a four D shape is a four dimentional object which you can pick up. it is a tesseract. (ffaarrtt)