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Let P, Q, R be three non-collinear point...

Let `P, Q, R` be three non-collinear points having rational coordinatse. (1) Coordinates of incentre of `DeltaPQR` are rational (2) Incentre of a triangle is the point of intersection of internal bisectors of angle of the triangle. (A) Both 1 and 2 are true and 2 is the correct explanation of 1 (B) Both 1 and 2 are true and 2 is not a correct explanation of 1 (C) 1 is true but 2 is false (D) 1 is false but 2 is true

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