Perimetrul= 2l+2L= 2×2,4+2×
[tex]3 \frac{1}{2} [/tex]
= 4,8+
[tex] \frac{7}{2} [/tex]
= 9,6/2+7/2=16,6/2=8,3 cm
Aria= L×l= 2,4×7/2=8,4 cm²
sper ca te am ajutat. baftă!
