Question

O gradinadadreptunghiulara are perimetrul 104 m. Lungimea este de 3ori mai mare decat latimea. Aflati laturile gradinii.

Answer 1

$P = 104 \: m$

$L = 3l$

$P=2(L+l)$

$2(3l+l) = 104 \: | \div 2$

$3l + l = 52$

$4l = 52 \: | \div 4$

$l = 13 \: m$

$L = 3l$

$L = 3 \times 13$

$L = 39 \: m$

Answer 2

P = 2(L+l)
P=104 m
L =3l
2(3l+l) =104
2×4l=104/
8l=104
l=104:8
l=13 m
L= 13×3=39 m