Question

ILLUSTRATION 2 The points P (a, b), Q (c,d), R (a, d) and
S(c, b), where a, b, c, d are distinct real numbers, are
(a) collinear
(b) vertices of a square
(c) vertices of a rhombus (d) concyclic​

Answer 1

Answer:

option b

Step-by-step explanation:

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