Răspuns:
[tex]P \: □ \: = l \times 4 \\ ............ \\ a) \:P \: □ \: = \frac{7}{8} \times 4 = \bf\blue{\boxed{ \frac{7}{2} }} \\ \\ b) \:P \: □ \: = 1 \frac{3}{4} \times 4 = \frac{1 \times 4 + 3}{4} \times 4= \frac{7}{4} \times 4 = \bf\purple{\boxed{7}}[/tex]
