Question

Va rog cineva!!!!!dau coroana sau funaaaaaa

Answer 1

a) L fata= L masa+ 2×70cm= L platou + 2×50 cm + 2×70 cm= 2,7 m + 100 cm + 140 cm= 2,7 m + 1 m+ 1,4 m = 5,1 m
l fata= l masa + 2×70 cm= l platou + 2×50 cm+ 2×70 cm= 1,5 m+ 100 cm+ 140 cm= 1,5 m + 1 m + 1,4 m= 3,9 m
b) A material= 5×A masa+ pierderi = 5×A masa + 23,5% A material => 5×A masa= 76,5%A material
A material = 5×A masa/ 76,5%
A material = 5×A masa×1000/765= 1000×A masa/ 153 = 1000× L fata× l fata/153
A material= 1000× 5,1 m× 3,9 m/153 = 19890 m^2 : 153 = 130 m^2