A standard united states flag has the dimension of 3 feet x 5 feet which of the following could be scaled versions select all

2 feet 4 feet
1 foot x 2 feet
15 feet by 25 feet
6 feet by 15 feet
30 feet by 50 feet

A scaled version of a standard United States flag must have the same aspect ratio, which means the ratio of its width to its length must be the same as the ratio for the standard flag (3:5).

The following options could be scaled versions:
- 2 feet x 4 feet (aspect ratio of 1:2)
- 6 feet x 15 feet (aspect ratio of 2:5)

The following options could not be scaled versions:
- 1 foot x 2 feet (aspect ratio of 1:2, not 3:5)
- 15 feet x 25 feet (aspect ratio of 3:5, but not the same dimensions as the standard flag)
- 30 feet x 50 feet (aspect ratio of 3:5, but not the same dimensions as the standard flag)