εμβαδά ευθυγράμμων σχημάτων...

μετακίνησε με το ποντίκι τους δρομείς πάνω αριστερά   κι αυτοί θα σου δείξουν το δρόμο για να βρεις το εμβαδόν - παραλληλογράμμου - τριγώνου - τραπεζίου - τετραπλεύρου με κάθετες διαγώνιες (άρα και ρόμβου...)   ξέροντας βέβαια ότι:		Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)
Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)	Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)	Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

δημήτρης ποιμενίδης   www.sonom.gr , 23 Απριλίου 1998(Ελλάδας), applets φτιαγμένα με  GeoGebra