4 faces: tetrahedron; a pyramid with a triangular base has 4 faces.
5 faces: pentahedron; A triangular prism (the sort you make a rainbow with) is a pentahedron; a square pyramidis a pentahedron - it has a square base and 4 triangular sides.
6 faces: hexahedron; a regular hexahedron, with all its faces square, is a cube. 7 faces: heptahedron 8 faces: octahedron
9 faces: enneahedron
10 faces: decahedron
11 faces: hendecahedron 12 faces: dodecahedron
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3dimentional figures are solid figures.
Figures that take up space.
The general term is "solid shapes"; some examples are sphere, pyramid, cone, rectangular prism.
If it is 3 dimensional it is an icosahedron If it is 2 dimensional it is an icosagon
Where the 4-dimensional figures are analogous to their 3-dimensional counterparts, the 4-d name is usually obtained by using the prefix "hyper". This does not distinguish between a 4-d figure or one in higher dimensions but, if necessary, the name can include that information. For example, 4-dimensional hyper-cube.
TRUE for 2-dimensional figure. False for 3-dimensional figures.
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2 dimensional figures just have width and length, if you were to add the height dimension it would become 3 dimensional.
3 sided figures are triangles.
3dimentional figures are solid figures.
A 5-sided 2-dimensional figure is a pentagon and a 5-sided 3-dimensional shape is a pentahedron.
The three dimensional figures are called Space figures
There are infinitely many types of 3 dimensional figures. It is impossible to name them all.
Figures that take up space.
No because a quadrilateral is a 4 sided 2 dimensional polygon whereas a pyramid is a 3 dimensional polyhedron
An octagon is an 8 sided 2 dimensional shape. A cylinder with the base of a hexagon (6 sided shape) would be an 8 sided 3 dimensional shape.