Unless the polygon is a triangle, it is a diagonal.
The only polygon with no diagonal is the triangle.
An 11 sided polygon has 44 diagonals
Diagonal.
A diagonal.
There are 560 diagonals by using the diagonal formula
It is a diagonal line segment
The diagonal of a square is not perpendicular to its side. The diagonal of a square will separate the square into two triangles. The diagonal goes from one corner to the opposite corner. Because it is a square, the diagonal and a side of the square will always form a 45-degree angle.
No.
Concave quadrilateral.
A concave polygon.
Not always, the diagonal can be figured out using the Pythagorean Theorem (a²+b²=c²). Where the diagonal is the hypotenuse (c). By rearranging the Pythagorean Theorem, you can see that the diagonal of a square is always 1.4 times the side of the square.