Respuesta :
(X1-X2)/2 = 8-5/2 = 1.5
(Y1-Y2)/2 = 7-4/2 = 1.5
Now add (1.5,1.5) to (5,4) u get the mid point (6.5,5.5)
(Y1-Y2)/2 = 7-4/2 = 1.5
Now add (1.5,1.5) to (5,4) u get the mid point (6.5,5.5)