Răspuns :
[tex]Dimensiunile\;paralelopipedului:\;L\;;\;l\;si\;h\\
stiim \;ca:L+l+h=26cm\;si\;\;\frac{L}{6}=\frac{l}{4}=\frac{h}{3}=...=\frac{26}{13}=2\;\\
a).\;L=6*2=12cm\;;\;l=4*2=8cm\;;\;h=3*2=6cm\;;\\
c).\;V=12\cdot8\cdot6=576cm^2\;;\\
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b).\;A_t=A_l+2\cdotA_b=P_b\cdot{h}+2\cdot(12\cdot8)=40\cdot6+142=...[/tex]
c).\;V=12\cdot8\cdot6=576cm^2\;;\\
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b).\;A_t=A_l+2\cdotA_b=P_b\cdot{h}+2\cdot(12\cdot8)=40\cdot6+142=...[/tex]
[tex] Dimensiunile~paralelipipedului~sunt:~L~,l\;si\;h\\Stim \;ca:L+l+h=26~cm\;si\;\;\frac{L}{6}=\frac{l}{4}=\frac{h}{3}=\frac{26}{13}=2\\\a)\\\L=6*2=12cm\;\\\;l=4*2=8cm\;\\h=3*2=6cm\;\\\\*c)\;V=12\cdot8\cdot6=576cm^2\\\\*b)\;A_t=A_l+2\cdotA_b=P_b\cdot{h}+2\cdot(12\cdot8)=40\cdot6+142=382[/tex]