Fie x , y , z - dimensiunile paralelipipedului Formăm proportiile:[tex] \frac{x}{8}= \frac{y}{6}= \frac{z}{24}= \frac{x+y+z} {8+6+24}= \frac{76}{38} [/tex] Aflam dimensiunile paralelipipedului:
[tex] \frac{x}{8}= \frac{76}{38};x= \frac{8*76}{38}=16(m) [/tex]=>[tex] \frac{y}{6}= \frac{76}{38};y= \frac{6*76}{38}=12(m) [/tex]=>[tex] \frac{z}{24}= \frac{76}{38};z= \frac{24*76}{38}=48(m) [/tex]
R/S=16 m , 12 m , 48 m .