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There is no simple way to find the area of a general quadrilateral. It will require information about the lengths of the sides and a pair of opposite angles. The quadrilateral is divided into two triangles by joining the other pair of angles and using the trigonometric formula for the area of each triangle.

So, suppose the sides of the quadrilateral are of lengths a, b, c and d units

the angle between a and d is A; and

the angle between b and c is C

then

Area = 1/2[a*d*sin(A) + b*c*sin(C)] square units.

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8y ago
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8y ago

Multiply the length by the width. Length x Width = Area of two-dimensional figure.

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