Răspuns :

Salut,

[tex]x_G=\dfrac{x_A+x_B+x_C}3=\dfrac{1+7-2}3=2.\\\\y_G=\dfrac{y_A+y_B+y_C}3=\dfrac{2+5+2}3=3.[/tex]

Centrul de greutate G are deci coordonatele G(2,3).

A fost greu ?

Green eyes.