What is a shape with 20 faces 12 vertices and 30 edges?
regular icosahedron
In geometry, a regular icosahedron (/ˌaɪkɒsəˈhiːdrən, -kə-, -koʊ-/ or /aɪˌkɒsəˈhiːdrən/) is a convex polyhedron with 20 faces, 30 edges and 12 vertices. It is one of the five Platonic solids, and the one with the most faces.
What is a shape with 12 faces called?
In geometry, a dodecahedron (Greek δωδεκάεδρον, from δώδεκα dōdeka “twelve” + ἕδρα hédra “base”, “seat” or “face”) or duodecahedron is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular dodecahedron with regular pentagons as faces, which is a Platonic solid.
What is the shape of a D20?
ICOSAHEDRON
ICOSAHEDRON. The signature die of Dungeons & Dragons, and taller than its siblings, the D20 rolls further because it is the most spherical. The faces are equilateral triangles.
What is a shape with 20 faces called?
In geometry, an icosahedron (/ˌaɪkɒsəˈhiːdrən, -kə-, -koʊ-/ or /aɪˌkɒsəˈhiːdrən/) is a polyhedron with 20 faces. The best known is the (convex, non-stellated) regular icosahedron—one of the Platonic solids—whose faces are 20 equilateral triangles.
How many faces has a dodecahedron?
12
Dodecahedron/Number of faces
A regular dodecahedron or pentagonal dodecahedron is a dodecahedron that is regular, which is composed of 12 regular pentagonal faces, three meeting at each vertex. It is one of the five Platonic solids. It has 12 faces, 20 vertices, 30 edges, and 160 diagonals (60 face diagonals, 100 space diagonals).
What is a dodecahedron used for?
Speculative uses include as a candlestick holder (wax was found inside two examples); dice; survey instruments for estimating distances to (or sizes of) distant objects; devices for determining the optimal sowing date for winter grain; gauges to calibrate water pipes, legionary standard bases, or a coin measuring …
How many faces does a dodecahedron have?
Dodecahedron/Number of faces
What is a 20 faced shape called?
icosahedron
In geometry, an icosahedron (/ˌaɪkɒsəˈhiːdrən, -kə-, -koʊ-/ or /aɪˌkɒsəˈhiːdrən/) is a polyhedron with 20 faces. The name comes from Ancient Greek εἴκοσι (eíkosi) ‘twenty’ and from Ancient Greek ἕδρα (hédra) ‘ seat’. The plural can be either “icosahedra” (/-drə/) or “icosahedrons”.
How many faces does a regular dodecahedron have?
Regular Dodecahedron: A regular dodecahedron has 12 faces, 30 edges, 20 vertices; and the shape of each face is a regular pentagon. Regular Icosahedron: A Regular icosahedron has 20 faces, 30 edges, and 12 vertices; and the shape of each face is an equilateral triangle.
What kind of polyhedron has 20 faces?
An icosahedron is a regular polyhedron that has 20 faces. All the faces are equilateral triangles and are all congruent, that is, all the same size. It is one of the five Platonic solids. Definition of a face.
How many faces does an Archimedean solid have?
In geometry, the rhombicosidodecahedron, or small rhombicosidodecahedron, is an Archimedean solid, one of thirteen convex isogonal nonprismatic solids constructed of two or more types of regular polygon faces. It has 20 regular triangular faces, 30 square faces, 12 regular pentagonal faces, 60 vertices, and 120 edges.
How to calculate the number of edges in a solid shape?
If a solid shape has 12 faces and 20 vertices, then the number of edges in this solid is . > If a solid shape has 12 fac… If a solid shape has 12 faces and 20 vertices, then the number of edges in this solid is _____. Euler’s Formula for any polyhedron is F +V −E = 2. Where, F = Faces and V = Vertices and E = Edges.