Răspuns :
I-----I-----I-----I-----I
I-----I
35:5=7
una din bucati are 7 cm si cealalta are 35-7=28 cm
I-----I
35:5=7
una din bucati are 7 cm si cealalta are 35-7=28 cm
a+b=35 |____|____|____|____|=>a
b=a:4 |____|=>b
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=>35:5=7 cm
(7*4)+(1*7)=28+7=35
b=a:4 |____|=>b
-----------------------------------------------------------------------
=>35:5=7 cm
(7*4)+(1*7)=28+7=35