n*(n-3)/2 where n- no. of sides
Concave quadrilateral.
A convex polygon
This is a diagonal line. The definition of a diagonal is a line that joins two nonconsecutive vertices or corners of a polygon.
VX
A perpendicular diagonal is a pair of segments or lines that cross a polygon making a perpendicular
No, a diagonal is never a side of a polygon:A diagonal is a line between two non-adjacent vertices of a polygon;A side is a line between two adjacent vertices of a polygon.
The only polygon with no diagonal is the triangle.
A concave polygon.
Concave quadrilateral.
It is a convex polygon.
A convex polygon
a convex polygon
This is a diagonal line. The definition of a diagonal is a line that joins two nonconsecutive vertices or corners of a polygon.
VX
Unless the polygon is a triangle, it is a diagonal.
A perpendicular diagonal is a pair of segments or lines that cross a polygon making a perpendicular
Pentagon