The area of a "simple" quadrilateral, like a square or a rectangle, is its width times its height: A=wh. The formula may fail for more complicated quadrilaterals.
Area of Quadrilateral - Formula, Definition, Solved Example, FAQs
Area of a Quadrilateral - Derivation of Formulae - Geometry - Maths - Class 8/VIII - ISCE
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How to Find the Area of a Quadrilateral: Formulas and Examples
Area of a Quadrilateral - Expii
How to Find the Area of a Quadrilateral
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Area of a Quadrilateral - Expii
Area of a Quadrilateral - Expii
Area of a Circle - Expii