Explicație pas cu pas:
A(3,0) B(1,4)
[tex]M = > xM = \frac{3 + 1}{2} = \frac{4}{2} = 2 \\ yM = \frac{0 + 4}{2} = \frac{4}{2} = 2 \\ M(2,2)[/tex]
A(-1,5) B(5,-1)
[tex]M = > xM = \frac{ - 1 + 5}{2} = \frac{4}{2} = 2 \\ yM = \frac{5 + ( - 1)}{2} = \frac{4}{2} = 2 \\ M(2,2)[/tex]
A(2,9) B(4,7)
[tex]M = > x M\frac{2 + 4}{2} = \frac{6}{2} = 3 \\ yM = \frac{9 + 7}{2} = \frac{16}{2} = 8 \\ M(3,8)[/tex]
A(3,-11) B(0,1)
[tex]M = > xM = \frac{3 + 0}{2} = \frac{3}{2} \\ yM = \frac{ - 11 + 1}{2} = \frac{ - 10}{2} = - 5 \\ M( \frac{3}{2} , - 5)[/tex]