Question

Ex 3 va rog urgent !!!!

Answer 1

P = AB (a) +AC (b) +BC (c)
a) a=3 m + 40 dm +5 m
40 dm=4 m
a= 3 m + 4 m + 5 m
a= 12 m
b) 300 cm + 40 dm+ 5 000 mm
300 cm = 3 m
40 dm = 4 m
5 000 mm = 5 m
3 m + 4 m + 5m = 12 m
c) 3 m + 4 m +5 m = 12 m