Răspuns :
l=x
L=4×
L+l=5
2L+2l=10
24,4:10=2,44
l=2,44
L=4×2,44=9,76
V:(L+l)×2=(9,76+2,44)×2=12,2×2=24,4
L=4×
L+l=5
2L+2l=10
24,4:10=2,44
l=2,44
L=4×2,44=9,76
V:(L+l)×2=(9,76+2,44)×2=12,2×2=24,4