There are 12 edges in a cube.
Each of the 12 edges of a cube is directly perpendicular to four others (two at each vertex for that edge).
24
24
Yes
Yes
there are 12 edges in a cube
A cube has twelve edges.
There are 12 edges in a cube.
A cube has 12 edges.
the square root of the sum of the squares of three perpendicular edges.
A cube has 12 edges.