If i have the four sides of an irregular quadrilateral without any angle or diagonal this formula can be use for calculating of area of this triangle $A=sqr(s-a)(s-b)(s-c)(s-d)$ where $s=(a+b+c+d)/2$
$\endgroup$ 3 Reset to defaultI have the four sides of an irregular quadrilateral and none of its angles. How can I calculate its area?
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