Unlock the secrets of any four-sided polygon with our comprehensive Quadrilateral Calculator. Easily compute area, perimeter, and key properties for squares, rectangles, rhombuses, parallelograms, trapezoids, and kites. Perfect for geometry tasks and quick checks, just input the vertex coordinates!
Formula:
Formulas Used:
Perimeter (P) = Sum of all four side lengths (Side AB + Side BC + Side CD + Side DA)
Where the side length between two points (x₁, y₁) and (x₂, y₂) is given by the distance formula: √((x₂ - x₁)2 + (y₂ - y₁)2)
Area (A) - Shoelace Formula = 0.5 × |(x₁y₂ + x₂y₃ + x₃y₄ + x₄y₁) - (y₁x₂ + y₂x₃ + y₃x₄ + y₄x₁)|
Variables:
(x₁, y₁), (x₂, y₂), (x₃, y₃), (x₄, y₄) are the coordinates of the four vertices of the quadrilateral, taken in order (clockwise or counter-clockwise).