8
It has 12 straight edges
all of its edges are straight
There are three straight edges in a triangle.
There are no straight edges in a sphere, it is basically a 3-D circle
8 straight sides
8
A flat (2D) shape triangle has 3 straight edges. A triangular pyramid has 6 straight edges. A square pyramid has 8 straight edges. (Note, some vertical edges have already been counted as you move from one face to the next.)
A cylinder has no straight edges
It has 12 straight edges
a pyramid has 4 straight edges
all of its edges are straight
There are 12 straight edges in a cube. :)
There are three straight edges in a triangle.
all have straight edges
There are no straight edges in a sphere, it is basically a 3-D circle
12 edges