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Question

If the coordinates of a triangle are A(2,1), B(6,1), C(6,5) then find the length of AB.


  1. 3 units

  2. 4 units

  3. -3 units

  4. -4 units


Solution

The correct option is B

4 units


Given A = (2,1), B = (6,1) and C = (6,5).

y-coordinates of B and A are the same so AB is parallel to X-axis.

The distance between the points on a line parallel to X-axis is the difference of their x-coordinates

AB = 62

    = 4 units

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