Răspunsuri

2014-05-24T14:09:20+03:00
Pai L=9+9
l=9
P=2(L+l)
P=2(18+9)
P=2x27
P=  54 cm

4 3 4
2014-05-24T14:10:54+03:00
9 cm= latimea dreptunghiului
9 cm+9 cm =18 cm
2x9=18 cm(lungimea)
2x9+2x18=18+36=54
P=54 cm
2 4 2