The length of a rectangular plot is thrice its width. If the area of the rectangular plot is 432 sq meters, then what is the width (in meters) of the rectangular plot?	Choose the correct choice from the following choices.
A) 10
B) 11
C) 12
D) 13
E) 14

Rationale: area = l * w = 3 w ^ 2 = 432 w ^ 2 = 144 w = 12 the answer is c .
Answer: C