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How many faces and edges does an icosahedron have?
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.
How many faces and edges are in icosahedon?
By definition, an icosahedron has 20 faces. The number of edges can be 30 (Platonic solid), 38 (19-gonal pyramid), 54 (18-gonal prism). Other, topologically different icosahedra also exist but are difficult to describe in just words.
What is 20 percent off of 54?
20% of 54 = 54 x (1 - (20/100)) = 54 x 0.8 = 43.2
What is 6 is to 20 as 54 is to B?
6/20 = 54/B so B = 54*20/6 = 180
There are 9 cubes joined together in the shape of an l if this is dipped in red paint and then taken apart how many faces will be red?
Total number of faces = 9*6 = 54 Number of "hidden" faces = 2*(9 - 1) = 16 So number of painted faces = 54 - 16 = 38
