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The Brainliest Answer!
2015-12-22T18:29:00+05:30
Any quadrilateral can be split into 2 scalene triangles then adding them you get the area quad.
The triangles formed can either be scalene or equilateral or isosceles or right triangle, accordingly the formula changes.

SCALENE triangle:-
√s(s-a)(s-b)(s-c) + √s(s-a)(s-b)(s-c)

Equilateral triangle:-
√3 /4 a²+√3/4a²

Isoceles triangle;-
bh/2+bh/2

Right triangle:-
√(a²+b²) + √(a²+b²)

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Yours, Jahnavi
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