Question

# If the coordinates of a triangle are A(2,1), B(6,1), C(6,5) then find the length of AB. 3 units 4 units -3 units -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 = ∣∣6−2∣∣     = 4 units

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