If it is a cyclic quadrilateral, meaning that it can be inscribed in a circle, then you can use the formula
where S is the semiperimeter (half the sum of all the sides) and a, b, c, and d are all side lengths. If it is not a cyclic quadrilateral or you are unsure if it is or not then use the formula:
where S is the semiperimeter (half the sum of all the sides) and a, b, c, and d are all side lengths and A and B are the angle measures across from side lengths a and b.
hope this helps
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The formula is bXh or base times height. if for instance you had a quadrilateral with a base that is 2 inches in length and is 3 inches high its area would be 6in2 .
To find the area of a quadrilateral, multiply the length and width of the figure. The product will give you the area of the figure.
A trapezium is a quadrilateral (has four sides). Two sides are parellel, but the other two are not. To find the area of it, the formula is: 1/2 h(a+b)
A quadrilateral has 4 sides and 1 face which is its surface area.
You can calculate the area of any quadrilateral by dividing it into two triangles and summing their areas. A triangle's area is found by multiplying the base by the half of the height (when height measured perpendicular to the base)