no. of edges on a icosahedron are 30
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An icosahedron is a 20-sided figure. It also has 30 edges.
It has 20 faces. The number of edges will depend on the exact configuration of the shape. For example, a icosahedron in the form of a prism, with 18-gons as bases, will have 54 edges. On the other hand a pyramid with a 19-gon base will have 38 edges. A bipyramid with a decagon base will have 30 edges. There are very many more possible shapes.
A regular icosahedron has 20 faces (equilateral triangles), 30 edges and 12 vertices.
Vertices: 12 Edges: 30 Faces: 20
Icosahedron are a shape with 20 faces, 30 edges and 12 vertices. All the faces are triangles.