Find the distance between P (x1, y1) and Q (x2, y2) when: (i) PQ is parallel to the y-axis, (ii) PQ is parallel to the x-axis.
Here the given points are P( x1, y1) and Q(x2, y2)
(i) When PQ is ∥ to y axis then x1 = x2
The distance between P and Q is
(ii) when PQ is parallel to the x-axis then y1 = y2
The distance between P and Q is =
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