The formula for determining the perimeter of a rectangle is expressed as
Perimeter = 2(lengthe + width)
Given that the perimeter = 14, it means that
2(lenght + width) must be equal to 14
Looking at the options,
2(1 + 6) = 14
2(2 + 5) = 14
2(3 + 4) = 14
2(4 + 3) = 14
2(5 + 2) = 14
2(6 + 1) = 14
Thus, the correct options are A, B, C, D, E, F