Respostas

2013-05-28T15:43:11-03:00

xm =( xA + xB) / 2 = (6 + 1 ) / 2 = 7/2  

ym = ( yA + yB )/2 = ( 4 + 2) /2 = 6/2 = 3 

 

coordenadas do ponto médio (  7/2 ; 3)