Calculate the area of the triangles![br][br]Draw missing sections with the [i][icon]https://www.geogebra.org/images/ggb/toolbar/mode_segment.png[/icon][/i][i]Segment[/i] tool and measure the length of the sections with the [icon]https://www.geogebra.org/images/ggb/toolbar/mode_distance.png[/icon][i]Distance or Length[/i] tool.