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Симетрала на отсечка
Кликнете на полето PLAY за да ја проследите конструкцијата на симетрала на отсечка.
Со лизгачот[b] r[/b] може да ја менувате должината на отсечката АВ.
Со колкав радиус треба да ги опишуваш кружните лаци?