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Aflati aria totala a unui cuboid cu dimensiunile:a)6cm,8cm,10cm b)4cm,6cm,2intreg 1 supra 6

Răspuns :

At=2(L*l+L*h+l*h)
a)=2(6*8+6*10+8*10)=2(48+60+80)=2*188=376cm2
b)=2(4*6+4*13/6+6*13/6)=2(24+52/6+13)=2*274/6=274/3=91,(3)cm2