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Un patrat are latura de 1,25dm.Calculati aria in centimeri patrati

Răspuns :

A patrat=l²
A patrat=1,25²dm²
A patrat=1,5625dm²=156,25cm²;
1,25 dm ^ 2 = 1,5625 dm2 1,5625 dm2= 1,5625*100=156,25 cm2