A quadrilateral is a closed plane figures that has four sides, four interior angles and four vertices.
E.g., square, rectangle, parallelogram.
Angle Sum of a Quadrilateral
The sum of interior angles of a quadrilateral is $360^\circ$.

(Angle sum of quadrilateral)
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$a{}^\circ +b{}^\circ +c{}^\circ +d{}^\circ =360{}^\circ$
Quadrilaterals and its Properties
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A **quadrilateral** is a closed plane figures that has four sides, four interior angles and four vertices.

The sum of interior angles of a quadrilateral is $360^\circ$.


$a{}^\circ +b{}^\circ +c{}^\circ +d{}^\circ =360{}^\circ$

Quadrilaterals and Its Properties

Quadrilaterals and Its Properties

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