Mathematics
If the coordinates of the vertex A of a square ABCD are (3, -2) and the equation of diagonal BD is 3x - 7y + 6 = 0, find the equation of the diagonal AC. Also find the coordinates of the centre of the square.
Related Questions
A straight line passes through P(2, 1) and cuts the axes in points A, B. If BP : PA = 3 : 1.

Find :
(i) the coordinates of A and B.
(ii) the equation of the line AB.
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If the lines kx - y + 4 = 0 and 2y = 6x + 7 are perpendicular to each other, find the value of k.
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