<-- a
<-- b
<-- c
<-- d
<-- angle 1 α
<-- angle 2 γ
  

How does the Bretschneiders Formula Calculator work?
Free Bretschneiders Formula Calculator - Calculates the area of a quadrilateral using Bretschneiders Formula
This calculator has 6 inputs.

What 2 formulas are used for the Bretschneiders Formula Calculator?

s = a + b + c + d
A = sqrt[(s - a)(s - b)(s - c)(s - d) - abcd · cos2(0.5(α + y))]

For more math formulas, check out our Formula Dossier
What 7 concepts are covered in the Bretschneiders Formula Calculator?
area
Number of square units covering the shape
bretschneiders formula
Alternative formula to determine the area of a quadrilateral
A = sqrt[(s - a)(s - b)(s - c)(s - d) - abcd · cos2(0.5(α + y))]
geometry
study of math dealing with shapes, space, and properties of space
perimeter
The distance around a shape or object
quadrilateral
Polygon with 4 edges/sides and 4 corners/vertices
semi-perimeter
half the perimeter of a polygon
s = P/2
trigonometry
Trigonometry studies relationships between side lengths and angles of triangles. The word trigonometry comes from the Greek word trigonon which means triangle and metron which means measure



Bretschneiders Formula Calculator Video