5
5
An edge of a 3-d pentagon is the intersection of two of its adjacent faces.
In a regular pentagon, the lines of symmetry are drawn from each vertex to the midpoint of the edge directly opposite the vertex, so there are five in all.
There is 540 in a pentagon.
One possible way to divide a pentagon into five parts is (assuming this is a convex pentagon) to start by placing a dot directly in the center. Then, draw a 5 lines from that center dot connecting to the 5 points around the edge of the pentagon. You should now have 5 triangles instead of 1 pentagon.
A pentagon has five sides.
A pentagon has 5 diagonals.
A pentagon has five sides.
There are 5 angles in a pentagon.
There are five diagonals in a pentagon.
there are 5 vertices in pentagon