A cube or a cuboid would fit the given description of 12 edges and 6 faces.
Cube or cuboid (3D figure) - 12 edges Dodecagon Deodeca (2D figure) Octahedron - (3D figure) - 8 faces 12 edges 6 vertices cube, rectangular, prism, pyramid
a square, a rectangular solid
You have to count the lines on a solid figure
A triangular prism has 4 triangular faces and 6 edges (3 for the base and other 3 to form the "point" of the pyramid.
A hexagonal figure have 6 edges
6
A cube has 6 faces. The number of faces, alone, is not sufficient to figure out the number of edges. For example, a cube has 12 edges. A pentagonal pyramid also has 6 faces, but it has 10 edges.
A tetrahedron.
A cube or a cuboid would fit the given description of 12 edges and 6 faces.
A tetrahedron is a solid figure with 6 edges. There's no such thing as solid edges. A tetrahedron is a triangular pyramid, with 4 vertices, 6 edges and 4 triangular faces. In a regular tetrahedron (the first Platonic solid) all triangles are equilateral.
It is a hexahedron
It is a triangular prism that has 5 faces, 9 edges and 6 vertices
The hexagon at one end has 6 edges. The hexagon at the other end also has 6 edges. And then, there are 6 edges joining the two hexagons together. So, in all, there are 6+6+6 = 18 edges. A prism with bases that are n-gons has 3*n edges.
Cube or cuboid (3D figure) - 12 edges Dodecagon Deodeca (2D figure) Octahedron - (3D figure) - 8 faces 12 edges 6 vertices cube, rectangular, prism, pyramid
...CUBE hAS 6 CONGRuent faceS ,8 vertices and 12 EDGES
A triangular pyramid has 4 faces and has 6 edges