The length of a rectangle is 2 cm more than the width of the rectangle. The perimeter of the rectangle is 20 cm. Find the length and the width of the rectangle.
Choose the correct answer:
A) l = 2 , w = 9
B) l = 5 , w = 8
C) l = 6 , w = 4
D) l = 1 , w = 7
E) l = 2 , w = 3

Rationale: let length l = x , width w = x − 2 and perimeter = p ∴ p = 2 l + 2 w = 2 x + 2 ( x − 2 ) 20 = 2 x + 2 x − 4 4 x = 24 x = 6 l = 6 cm and w = l − 2 = 4 cm answer is c .
Answer: C