Răspunsuri

2014-11-08T22:53:09+02:00
1m=100 cm
P=AB+BC+CD+DA
AB=a
BC=a+1
CD=a+2
DA=a+3
a+a+1+a+2+a+3=100
4a+6=100
4a=100-6
a=94/4
a=27
AB=27 cm
BC=28 cm
CD=29 cm
DA=30 cm
nu e corecta impartirea 94/4 ..da cu virgula ..si 27+28+28+30 = 114 , nu 100
a=23,5cm , AB=23,5, BC=24,5, CD=25,5, DA=26,5
23,5+24,5+25,5+26,5=100