Răspuns :
Răspuns:
a+b=40
a=3b
3b+b=40
b=40:4=>b=10
a=3×10=>a=30
_____________
b.I__I
a.I__I__I__I } 40
1+3=4 segm egale
40:4=10 (b)
10×3=30 (a)
Răspuns:
a+b=40
a=3b
3b+b=40
b=40:4=>b=10
a=3×10=>a=30
_____________
b.I__I
a.I__I__I__I } 40
1+3=4 segm egale
40:4=10 (b)
10×3=30 (a)