сбор на ъглиТЕ на триъгълник

7 клас

TCH

 

 Задача 1.  

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 Задача 2.  

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)

 

 Задача 3.  Намерете ъглите на равнобедрен триъгълник, ако

    Преценете кой триъгълник да използвате за помощ или проверка.

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)

 

Ето още няколко илюстрации на теоремата за сбор на ъгли на триъгълник.

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)