para as questões a b e c considere os pontos a (-3,-1), B (0,2) e C (5,-7).(3,0) calcule as coordenadas do ponto médio do segmento AC
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A(-3,-1)
B(0,2)
C(5,-7)
XG = ( xa + xb + xc ) / 3
XG = ( -3 + 0 + 5 ) / 3
XG = 2/3
YG = ( ya + yb + yc ) / 3
YG = ( -1 + 2 - 7 ) / 3
YG = -6/3
YG = -2
G(2/3,-2)
B(0,2)
C(5,-7)
XG = ( xa + xb + xc ) / 3
XG = ( -3 + 0 + 5 ) / 3
XG = 2/3
YG = ( ya + yb + yc ) / 3
YG = ( -1 + 2 - 7 ) / 3
YG = -6/3
YG = -2
G(2/3,-2)
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