[size=100]Construct an isosceles triangle whose length of the base and height can be modified by dragging corresponding vertices with the mouse.[/size]

[list][*][size=100]Summarize the properties of the geometric figure you want to create.[br][/size][/*][*][size=100]Try to find out which GeoGebra tools can be used in order to construct the figure using some of these properties (e.g. right angle – tool [img]https://wiki.geogebra.org/uploads/thumb/7/7e/Mode_orthogonal.svg/16px-Mode_orthogonal.svg.png[/img][i] Perpendicular Line[/i]).[/size][/*][*][size=100]Don’t forget about the [img]https://wiki.geogebra.org/uploads/thumb/3/38/Menu-edit-undo.svg/16px-Menu-edit-undo.svg.png[/img] [i]Undo[/i] and [img]https://wiki.geogebra.org/uploads/thumb/8/85/Menu-edit-redo.svg/16px-Menu-edit-redo.svg.png[/img] [i]Redo[/i] buttons in case you make a mistake.[br][/size][/*][*][size=100]Frequently use the [img]https://wiki.geogebra.org/uploads/thumb/8/83/Mode_move.svg/16px-Mode_move.svg.png[/img] [i]Move[/i] tool in order to check your construction (e.g. are objects really connected, did you create any unnecessary objects).[br][/size][/*][/list]