Area of a Cyclic Quadrilateral (from 4 Sides)
Calculates the area and perimeter of a quadrilateral inscribed in a circle based on the 4 sides of the quadrilateral.
| Area S | |
| Perimeter L |
| \(\normalsize Brahmagupta's\ formula \\ (1)\ area:\ S=\sqrt{(s-a)(s-b)(s-c)(s-d)}\\ \hspace{150px} s={\large\frac{a+b+c+d}{2}}\\ (2)\ perimeter:\ L=2s=a+b+c+d\) |
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