A, B, C are three points such that. Do they lie on a straight line?

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Solution

Length of line segment AB = cm

Length of line segment BC = cm

Length of line segment CA = cm

For three points, A, B and C to lie on a straight line, the sum of the lengths of line segments AB and BC should be equal to the length of line segment CA.

AB + BC

CA =

⇒ AB + BC = CA

Thus, the given points lie on a straight line.

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