General Quadrilateral Formula

Posted In: Mathematics

In Euclidean plane geometry, a quadrilateral is a polygon with four edges (or sides) and four vertices or corners.


Sides of quadrilateral: a,b,c,d
Diagonals: d1,d2
Angle between the diagonals: φ
Internal angles: α,β,γ,δ
Perimeter: L
Area: S

  1. $α+β+γ+δ=360°$
  2. $L=a+b+c+d$
  3. $S=1/2d_1d_2\ sin\ φ$

Post Tags: Geometry

No Comments »

Leave a Reply

Your email address will not be published. Required fields are marked *