Your Answer is

Correct Answer is A

Explanation

144=width×length=1×144=2×72=3×48=4×36=6×24=8×18=9×16, so the possible circumferences are 290, 148, 102, 80 , 60, 52, 50. Choose A.

Or, if the length and width of the rectangle are a+b and ab respectively, then the perimeter is 2(a+b+ab)=4a, and the area is (a+b)(ab)=a² -b²=144, because the length and width of the title are not equal, so b>0, so a>12, 4a>48.