Question

Pls ex 2 dau coroana rapid pls pls pls Scuzați-mă de spam

Answer 1

Rezolvarea e pe foaie:

Answer 2

A totala=2(a*b+a*c+b*c)=2*(80+50+40)=340 cm²
V=a*b*c=10*8*5=400 cm³
daca a=(b+c)/2
b=(a+c)/2
=>a=[(a+c/2)+c]/2
2a=a+3c/2
4a=a+3c  /-a
3a=3c => a=c
=> b=2a/2=> b=a => a,b,c egale=> cub