A dodecahedron has 12 sides.
a dodecahedron has 20 vertices and 12 faces
A dodecahedron is a generic term which describes a 3-dimensional shape with 12 polygonal faces. There are approx 6.4 million topologically different convex dodecahedra plus concave ones. They can have 8 to 20 vertices and 18 to 30 edges.
120.A regular Dodecahedron has 120 symmetries.
If one of its exterior angles is 30 degrees, then it is a star with 6 points and 12 sides. 360 degrees / 30 degrees = 12 angles It is a regular dodecahedron.
Only the irregular dodecahedron because regular dodecahedron do not have 90 degrees on base.
11
180 degrees
180
I assume you mean a regular dodecahedron. A regular dodecahedron has twelve faces, each of which are regular* pentagons. *(all sides are congruent, all angles are congruent)
A dodecahedron has 12 sides.
A dodecahedron can have 8 to 20 vertices.
a dodecahedron has 20 vertices and 12 faces
A dodecahedron need not have any triangular faces.
A dodecahedron has 0 parallel faces
A dodecahedron is a generic term which describes a 3-dimensional shape with 12 polygonal faces. There are approx 6.4 million topologically different convex dodecahedra plus concave ones. They can have 8 to 20 vertices and 18 to 30 edges.
120.A regular Dodecahedron has 120 symmetries.