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Is a sphere a polyhedron?
No, a sphere is not a polyhedron.A polyhedron is a three-dimensional geometric figure whose sides are polygons.A regular polyhedron is a polyhedron whose faces are all congruent regular polygons.
Is a triangular pyramid a regular polyhedron?
Yes and its names is a tetrahedron.
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.
What does a octahedron look like?
In geometry, an octahedron is a polyhedron with eight sides. A regular octahedron is the dual polyhedron of a cube; It is a rectified tetrahedron.
Is a soccer ball a tessellation?
A soccer ball is not a tesselation because it is made of hexagons that do not connect and it is a ball. therefore it is not a tesselation
A soccer ball wt 12 regular hexagons and 12 regular pentagons how many verT ices does his polyhedron have?
A soccer ball (a.k.a. a truncated icosahedron) does have 12 pentagonal faces but does not have 12 hexagonal faces, it has 20. It will have 60 vertices.
What kind of polyhedron is a official soccer ball?
It is a truncated icosahedron projected onto a sphere.
Why decahedron is not a regular polyhedron?
It is not a regular polyhedron because it has unequal sides
How much does a regular soccer ball cost?
about 20
Is a truncated isocahedron a regular polyhedron?
No. It is a semi-regular polyhedron. Explanation. The truncated icosahedron is a polyhedron that can be constructed from an icosahedron with the 12 vertices truncated (cut off) such that one third of each edge is cut off at each of both ends. This creates 12 new pentagon faces, and leaves the original 20 triangle faces as regular hexagons A regular polyhedron is a polyhedron whose faces are congruent regular polygons. The truncated icosahedron is NOT a regular polyhedron, it is a semiregular polyhedron. It is a uniform polyhedron.
What three-dimensional figure models a soccer ball?
A truncated icosahedron. A soccer ball has 20 regular hexagons and 12 regular pentagons. See link for an image, and more information.
Is a sphere a polyhedron?
No, a sphere is not a polyhedron.A polyhedron is a three-dimensional geometric figure whose sides are polygons.A regular polyhedron is a polyhedron whose faces are all congruent regular polygons.
Why is a rectangle polyhedron not regular polyhedron?
The sides of a rectangle are not all equal so a rectangle is not a regular polygon. And, as a consequence, any 3-dimensional shape made from rectangles cannot be a regular polyhedron.
Is a ball a polyhedron?
no its a sphere
Is a decahedron a regular polyhedron?
No.
Is a cylinder a regular polyhedron?
No, it is not.
Do 20 equal sides form a polyhedron?
No. A polyhedron is 3 dimensional. You have a regular polygon, regular because the sides are equal. If you asked about 20 surfaces, then it would be a polyhedron.
