A square of side 8 cm has been made to a rectangle by combining it with a rectangle of dimensions of length 8cm and breadth 4cm. What is the perimeter of the newly formed rectangle? Choose the correct choice from the following answers.
A) 10 B) 20 C) 40 D) 60 E) 80

Rationale: dimensions of newly formed rectangle , length = 8 + 4 = 12 cm breadth = 8 cm perimeter of the new rectangle = 2 x ( 12 = 8 ) = 40 cm answer : c
Answer: C