Răspuns :

Răspuns:

AB+BC+AC=72 cm. AB/2=BC/3=AC/4.Ab=2k,BC=3k,AC=4k. 2k+3k+4k=9 k.=72cm:9 =8 cm. Ab=8×2=16,BC=8×3=24,AC=8×4=32cm. Proba:16+24=40+32=72 cm