Question

ajutăma vă rog frumos
am nevoie urgent ​

Answer 1

Răspuns:

P=2*L+2*l

a) P=2*18m+2*29m=36m+58m=94m

c)P=2*18cm+2*21mm=2*18cm+2*2,1cm=36cm+8,4cm=44,4cm

e) P=2*1,5km+2*2500m=2*1500m+2*2500m=3000m+5000m=8000m

b)P=2*15hm+2*17dam=2*15hm+2*1,7hm=30hm+3,4hm=33,4hm

d)  P=2*18,32dm+2*23,15mm=2*18,32dm+2*0,2315dm=36,64dm+0,463dm=37,103dm

f)P=2*6,3hm+2*1km=2*0,63km+2*1km=1,26km+2km=3,26km

Explicație pas cu pas: