Question

o gradina dreptunghiulara are perimetreul de 562 dam.latimea reprezinta doua treimi din lungime.care sunt dimensiunile gradinii?

Answer 1

P=2(L+l)=562 dam
l=2L/3
2(L+2L/3)=562
5L/3=281
L=168.6 dam
l=112.4 dam

Answer 2

perimetrul =562

suma=$\frac{perimetru}{2}$

=$\frac{562}{2}$ 

=281
latimea= $\frac{2}{3}$ x lungime

2x+3x=281
5x=281
x=281:5
x=56,2
56,2x2=112,4(latimea)
56,2x3=168,6(lungimea)