L =25m =2500 cm
l =10.5 m =1050 cm
h =3.2m =320cm
S bazei =2500*1050 = 2625000 cm ^2
S lat =2(2500*320)=1600000 cm ^2
S lat =2 (1050*320 )=672000 cm ^2
S+S+S =2625000+1600000+672000 =4897000 cm ^2
S unei placi =25*40 =1000 cn ^2
4897000 : 1000 =4897 placi