JEE Mains Model Paper 24

Reflection of A in BD and CF lies on BC.
Reflection of A in BD i.e. y = x is (5, 3)
Reflection of A in CF ie. x = 10 is (17, 5)
∴ Equation of BC is y - 3 =

5−3

17−5

(x - 5)
i.e. x – 6y + 13 = 0 or 6y – x = 13