3)
Ti-am raspuns in cealalta intrebare postata
4)
a)
5 1/2 = 11 cm
A = 9.4 x 11 = 103.4 cm²
b)
3A = 103.4 x 3 = 310.2 cm²
L = 310.2/9.4 = 33 cm
33 - 11 = 22 (trebuie marita cu 22 cm)
5A = 103.4 x 5 = 517 cm²
L = 517/9.4 = 55 cm
55 - 11 = 44 (trebuie marita cu 44 cm)
c)
V = 10³ = 1000 cm ³
At = 6 x 10² = 6 x 100 = 600 cm ²
