Quadrilateral's length of the diagonals
A quadrilateral is a polygon with four sides (or edges) and four vertices or corners. The interior angles of a simple (and planar) quadrilateral add up to 360 degrees of arc.
The two diagonals of a convex quadrilateral are the line segments that connect opposite vertices.
The length of the diagonals in a convex quadrilateral can be calculated using the law of cosines.
|p||Diagolal (opposite to angle B) (m)|
|a||Side (adjacent to angle B) (m)|
|b||Side (adjacent to angle B) (m)|
|B||Angle (between sides a and b) (degree)|