Răspuns :
A = L•l
L = 15
l = 2/3 • L
l = 2/3 • 15
(simplificăm 3 cu 15 prin 3)
l = 2•5
l = 10 (cm)
L = 15 (cm)
A = 15 • 10
A = 150 (cm²)
Succes!!
L = 15
l = 2/3 • L
l = 2/3 • 15
(simplificăm 3 cu 15 prin 3)
l = 2•5
l = 10 (cm)
L = 15 (cm)
A = 15 • 10
A = 150 (cm²)
Succes!!