Răspunsuri

2014-05-25T10:49:38+03:00
Adreptunghi=L*l=4*9=36

Apatrat=36
A=l²   ⇒l²=36   ⇒l=6 

P=4l=4*6=24
2014-05-25T10:49:48+03:00

Apatrat⇔Adreptunghi

Adr=L*l

Adr=4*9=36

Apa=l²

36=l²

l=√36=6

P=4l

P=4*6=24