Răspuns :
L = 2 x latime + 3 m
L + latime = 33 m
2 x latime + 3 m+ latime = 33
3 x latime = 33 m - 3
3 x latime = 30 m
latimea = 30 : 3
latimea = 10 m
L = 2 × 10 m + 3 = 23 m
L + latime = 33 m
2 x latime + 3 m+ latime = 33
3 x latime = 33 m - 3
3 x latime = 30 m
latimea = 30 : 3
latimea = 10 m
L = 2 × 10 m + 3 = 23 m