Enter Point 1: (x1,y1)

Enter Point 2: (x2,y2)

Enter Point 3: (x3,y3)

Enter Point 4: (x4,y4)

How does the Quadrilateral Calculator work?
Free Quadrilateral Calculator - Given 4 points entered, this determines the area using Brahmaguptas Formula and perimeter of the quadrilateral formed by the points as well as checking to see if the quadrilateral (quadrangle) is a parallelogram.
This calculator has 4 inputs.
What 3 formulas are used for the Quadrilateral Calculator?
Perimeter of ABCD = AB + BC + CD +AD

s = ½P
A = √(s - a)(s - b)(s - c)(s - d)
Related Calculators
What 6 concepts are covered in the Quadrilateral Calculator?
area
Number of square units covering the shape
brahmaguptas formula
A Euclidean geometry formula used to find the area of any cyclic quadrilateral (inscribed in a circle)
parallelogram
simple quadrilateral with two pairs of parallel sides.
perimeter
The distance around a shape or object
point
an exact location in the space, and has no length, width, or thickness
quadrilateral
Polygon with 4 edges/sides and 4 corners/vertices
Example calculations for the Quadrilateral Calculator



Quadrilateral Calculator Video

Quadrilateral Calculator Video