Pb=4*l=4*13=52
Ab=l*l=13*13=169
Al=l*h=13*18=234; Aria tuturor laturilor=4(l*h)=936
At=Aria tuturor laturilor+Ab*2=936+2*169=1274
V=l*h*l=169*18=3042
sper ca am facut corect
ABCD=Patrat=>
=> Pb= 4l=4x13=52cm
Ab=l²=13²=169cm²
ABA'B'=Dreptunghi=>
=>Al=Pbxh=52x18=936cm²
At=2Ab+Al=2x169+936=1274cm²
V=Abxh= 169cm²x18=3042cm²
Sper ca te am ajutat!
