Free Bretschneiders Formula Calculator - Calculates the area of a quadrilateral using Bretschneiders Formula

This calculator has 6 inputs.

This calculator has 6 inputs.

s = a + b + c + d

A = sqrt[(s - a)(s - b)(s - c)(s - d) - abcd · cos^{2}(0.5(α + y))]

For more math formulas, check out our Formula Dossier

A = sqrt[(s - a)(s - b)(s - c)(s - d) - abcd · cos

For more math formulas, check out our Formula Dossier

- 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 · cos^{2}(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