Răspuns :
P patrat=4xl
4xl=20
l=20:4
l=5
Aria=lxl
Aria=5x5
Aria=25 cm patrati
4xl=20
l=20:4
l=5
Aria=lxl
Aria=5x5
Aria=25 cm patrati
perimetrul =4*l deci l=5 cm iar aria=latura la patrat deci = 5 la patrat adica 25cm patrati
succes in continuare
succes in continuare