It has 20 faces.
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An Icosahedron has 20 triangular sides. yay
Icosahedron are a shape with 20 faces, 30 edges and 12 vertices. All the faces are triangles.
it has 20 faces and 12 vertics
Look up on line in the Free Dictionary by Farlex. Shows a picture of the 20-sided icosahedron in which it appears that the top and bottom have 5 sides each and the center has 10 sides.
6 equal sides20 faces and 12 sides