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l=5cm
L=10cm
P=?
A=?



Răspuns :

Ocros
A = L · l = 10 · 5 = 50 cm²
P = 2L + 2l = 2·10 + 2·5 = 20 + 10 = 30 cm
p=2(L+l)=2(5+10)=2x15=30 cm
A=lxL=10X5-50CM²