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Check whether the points (1, 5), (2, 3) and (-2, -11) are collinear by comparing distances.

Class 10Distance FormulaGeometry — Coordinates
  • ANot collinear, since no sum of two distances equals the third
  • BCollinear, since they lie on the -axis
  • CCollinear, since all distances are equal
  • DCannot be decided using the distance formula

Step-by-Step Solution

AB = , BC = , AC = . No sum of two equals the third, so the points are not collinear.
Answer: A) Not collinear, since no sum of two distances equals the third

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