congruence
Such a shape does not exits. See the attached link for all 3d shapes with 6 plane faces.
a traingle can not have no sides, then it wouldnlt be a triangle, as far as i know, all 2d dimensional shapes have at least 3 SIDES, a shape with no sides isn't a shape, its nothing ness A scalene triangle- All sides are different
The shape of the 12 faces of a regular dodecahedron are regular pentagons.
circle, sphere and another shape do not have faces or edges
triangle
A triangle has only one face and, not surprisingly, its shape is a triangle.
Only one; a triangle is a 2D shape, not a 3D shape. Usually only 3D (or more) shapes are considered to have 'faces'.
pentagonal square
Many solid shapes could have 6 faces, but the most common such shape, with 6 equal faces, is the cube.
There are infinitely many such shapes. A tetrahedron is one example.
Your shape is a triangular octagon. * * * * * What on earth is that shape? The most likely answer is an octogonal pyramid.
scalene triangle,circle,a polygon of iregular shape
Octohedron
Such a shape does not exits. See the attached link for all 3d shapes with 6 plane faces.
Many shapes circle, equalateral triangle, square, and all normal shapes from then on such as pentagon and hexagon etc.
Pyramid
Triangle