Răspunsuri

2014-05-08T16:41:33+03:00
P dreptunghi=2(L+l) =252 => L+l=126
Inlocuiesti L=28+l => 28+l+l=126 => 2l=98 => l=49cm si L=28+49=77
aha
ms mult
Cu placere
dar prin calcule poti ex: 252=28 ??
252+28 = ?? scz.
2014-05-08T17:02:42+03:00
258+28=280  apoi 280+280=560 , 252 +252=504 si560+504=1064