square
There are 4
Normally, none.
four... because quad means four :)
It has 9 diagonals
It Has 13 Sides
4 sides and 4 angles
Yes a trapezoid is always a 4 sided quadrilateral.
A undecagon has 44 diagonals. A dodecagon has 54 diagonals. An octagon has 20 diagonals. A heptagon has 14 diagonals.
24 diagonals
2 diagonals
It has 2 Diagonals!!!
There are 20 diagonals
20 diagonals
It has 27 diagonals
In general, no.
how many diagonals from a vertex a heptagon have