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2014-03-25T01:25:46+02:00
A) |------|     b) |------|////|   c)|------|////|////|    d)  |------|////|////|////|  suma in total este 820 ,acele 6  segmente hasurate sun de 90.       90×6=540,  820-540=280,    280÷4=70(a),    70+90=160(b) ,   70+(90×2)=70+180=250(c) ,   70+(90×3)=70+270=340(d).                    Verificare: 70+160+250+340=820