51. Match List-I with List-Il and select the correct answer using the code given below the list. Column I Column-II The lines y = 0: y 1; x 6y + 4 =0 and x + |-9-0 constitute a figure which is The points A(a,0), B(0, b), C(c.0) and D(0, d) are such that ac = bd and a, b, c, d are all non-zero The figure formed by the four lines by A cyclic quadrilateral 1 A rhombus R 3 A square ax by tc =0(a #0), is The line pairs x? -8x +12 =0 and y -14y+45 0 constitute a figure which is A trapezium 4 (Not a parallelogram) A) P2,3 B) P2,3 C) P1,4 D) P1, 4 Q 1 Q 4 Q 1 Q 1 R 4 S- 3 R 2 S- 1,2,3 R 2 R 4 S- 1, 2, 3 S 2