Question

Calculati perimetrul unui dreptunghi ce are dimensiunile (lungime si latine ) egale cu :

 a) L = 15 dm, l = 6 dm si b) L= 2 hm, l= 15 dam...Va rog ajutatima ! e urgent!

 

Answer 1

a) L=15dm
l=6 dm

P=L+L+l+l
P=15+15+6+6
P=30+12
P=42 dm

b) L=2hm=20 dam
l=15 dam

P=L+L+l+l
P=20+20+15+15
P=40+30
P=70 dam