The distance of the point P(2, 3) from the x-axis is - 3, The distance between the point P(1, 4) and Q(4, 0) is - 5, The area of the triangle ABC with the vertices A(-5, 7), B(-4, -5) and C(4, 5) is - 53, The area of the triangle whose vertices are A(1, 2), B(-2, 3) and C(-3, -4) is - 11, If (a/3, 4) is the mid-point of the segment joining the points P(-6, 5) and R(-2, 3), then the value of ‘a’ is - -12,

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