12-2.1 Summary of Quadrilaterals Formulas
![[size=150]Investigate properties of a Quadrilateral.
[b][color=#ff0000]Drag [/color][/b]vertex A, B, C or D to create a variety of different Quadrilateral.
Focus on the measurements shown when you [b][color=#ff0000]click [/color][/b]each checkbox.
Do the exercises down-mentioned.[/size]](https://www.geogebra.org/resource/jxw4busr/G3rVjUvqmdThIdbU/material-jxw4busr.png)
12-2.1 Summary of Quadrilaterals Formulas
For more Examples open the link:
https://www.khanacademy.org/math/basic-geo/basic-geometry-shapes/basic-geo-quadrilaterals/a/quadrilaterals-review
Area of rectangles https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter/area-formula-intuition/e/area-of-squares-and-rectangles Area of parallelograms https://www.khanacademy.org/math/basic-geo/basic-geo-area-and-perimeter Area of trapezoids Find a missing side length when given the area Find missing length when given the area of a parallelogram
