Răspunsuri

2014-05-07T18:28:02+03:00
P=2.322
l=L-309 cm => L=l+309cm
P=2*(L+l)
P=2*(l+309cm+l)
P=2*(2l +309)
2.322cm=4l+618cm
4l=2.322-618cm
4l=1704cm
l=426cm => L=735 cm