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Nidhi Vaidya
Asked: 2022-11-06T14:34:38+05:30 In:

If the point `A` is symmetric to the point `B(4,-1)` with respect to the bisector of the first quadrant then `AB` is
A. `3sqrt(2)`
B. `5sqrt(2)`
C. `7sqrt(2)`
D. `9sqrt(2)`

If the point `A` is symmetric to the point `B(4,-1)` with respect to the bisector of the first quadrant then `AB` is
A. `3sqrt(2)`
B. `5sqrt(2)`
C. `7sqrt(2)`
D. `9sqrt(2)`
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1 Answer

  1. Correct Answer – B
    It is given that the point Q is symmetric to P(4,-1) with respect to y = x. So, coordinates of Q are (-1,4).
    `therefore ” ” PQ = sqrt((4-(-1))^(2)+(-1-4)^(2))= 5sqrt(2)`

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