To determine the sizes of refrigerators Shriya should consider, we need to consider the space available for the refrigerator and the fact that her current refrigerator has a volume of 20 ft³.
The space available for the refrigerator is 26 ft³. Therefore, Shriya should consider refrigerators that are less than or equal to the space available, which is 26 ft³.
However, it's also practical for her to consider a refrigerator that is larger than her current one (20 ft³).
Thus, the sizes of refrigerators she should consider should fall within the range of:
20 ft³ to 26 ft³.
So, to answer your question:
She should consider refrigerators that are between 20 ft³ and 26 ft³.