a)l=7m;L=2cm
b)L=8cm;l=4cm
Aria=?
Perimetrul=?


Răspuns :

a) A= l * L = 7 * 2= 14
 P = 2(L+l)= 2(7+2)=14+4=18
b) A = 8*4=32
P=16+8=24
a) A=L× l
A=2×7=14 m²
P=2(L+ l)
P=2(2+7)=2×9=18 m
b)A=8×4=32 m²
P=2(8+4)=2×12=24 m