How many do YOU think it has?
You can just count the lines....or
TWO end triangles have 3 sides (edges) each 2 x 3
then the 'points' of the the two triangles are connected by edges 3
9 edges
How many do YOU think it has?
You can just count the lines....or
TWO end triangles have 3 sides (edges) each 2 x 3
then the 'points' of the the two triangles are connected by edges 3
9 edges