[tex]A(0,3) \\
B(5,6) \\
C(5,3) \\
O(0,0)
[/tex]
AOCB paralelogram dacă :
[tex]x_{A}+x_{C}=x_{O}+x_{B}[/tex]
[tex]0 + 5 = 0 + 5[/tex]
[tex]5 = 5 \: \: (A)[/tex]
[tex]y_{A}+y_{C}=y_{O}+y_{B} [/tex]
[tex]3 + 3 = 0 + 6[/tex]
[tex]6 = 6 \: \: (A)[/tex]
=>AOCB paralelogram
