Watch this video and learn [b]how to[/b] transform triangles into special quadrilaterals in the [url=https://www.geogebra.org/geometry]GeoGebra Geometry App.[/url] [br][br]You will learn how to... [br][list][*]create a triangle with the tool [icon]/images/ggb/toolbar/mode_polygon.png[/icon] [i]Polygon[/i].[/*][*]create the [icon]https://www.geogebra.org/images/ggb/toolbar/mode_midpoint.png[/icon] [i]M[/i][i]idpoint or Center [/i]of a segment. [/*][*][i][icon]https://www.geogebra.org/images/ggb/toolbar/mode_mirroratline.png[/icon] Reflect[/i] an object about a line. [/*][*][i][icon]https://www.geogebra.org/images/ggb/toolbar/mode_rotatebyangle.png[/icon] Rotate[/i] an object around a point. [/*][/list]