The perimeter of PQRS is 2 ( 8 + 2) = 2 (10) = 20 units
So....since the perimeter of ABCD = 60....the scale factor of ABCD to PQRS = 60 : 20 = 3
Therefore.....AB = 3(PQ) = 3 (8) = 24
And BC = 3 ( QR) = 3(2) = 6
