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What do you call a polygon or shape that has 20 sides?
A icosahedron.
Is an icosahedron a semi-regular or regular polygon?
An icosahedron is in fact not a polygon at all, but a polyhedron. As a polyhedron it is regular however. The regular icosahedron is one of only five possible regular polyhedra. It has 20 faces, each of which is an equilateral triangle.
What do you call a polygon that has 20 sides?
icosahedron
20 sided shape?
Icosahedron is a 20 sided polygon.
What do you call a 20 sided shape?
A 20-sided polyhedron is an icosahedron. A 20-sided polygon is an icosagon.
What is a prefix meaning 20?
Icos- Icosagon - 20 sided polygon Icosahedron - 20-faced polyhedron
What is the name of an 20 sided polygon?
an icosahedron (icosagon) is a regular polyhedron with 20 identical equilateral triangular faces
How many equilateral triangles are needed to build one great Icosahedron?
20
How many short isosceles triangles are needed to build one great Icosahedron?
According to some definitions an icosahedron is considered a Platonic solid so that each of its faces is an equilateral triangle. You would, therefore need three coplanar isosceles triangles to make each face of the icosahedron. Since there are 20 faces in an icosahedron, you would need 60 such triangles.
How do you make a great icosahedron?
go look on youtube
What is a twenty sided shape called?
A 20-sided flat figure (polygon) is called an icosagon. If it is a solid figure--three-dimensional--it is an icosahedron.
How many faces does a Icosagon have?
An icosagon is a two-dimensional polygon, not a three-dimensional figure. An icosagon has 20 sides - while an icosahedron has 20 faces.
