Răspuns :

Ctinamaria31xxxid
a=L*l=6

l/L=6/9
l/L=2/3
3l=2L
l=2L/3

inlocuim in formula ariei

L*2L/3=6

2L patrat/3=6
2L patrat=18
L patrat=9
L=radical din 9
L=3

l=2*3/3

l=6/3
l=2

/ impartire
* inmultire.


Coolanutzaid
A=6 cm patrati
A=L*l
L/l=0,(6)=6/9=2/3=>2l=3L=>l=3L
A=L*l=>L*3L/2=6=>3L patrat/2=6=>3L patrat =12=>L patrat=4=> L=radical din 4=>L=2
Din A=L*l=>6=2*l=>2l=6=>l=3

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