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Congressional districts are based only on population, not on area.
United States congressional
Representatives are selected based on Population size of the states. Senate is 2 per State
The state's delegation to the House of Representatives is determined by its population size. Each state is entitled to a certain number of seats in the House, which is based on the population count from the census conducted every ten years. The apportionment process allocates the seats among the states, with smaller states having at least one representative and larger states having more representatives.
Supported minimum size
Minimum size is 36
Each state is guaranteed a minimum of 2 senators in the United States Senate, regardless of its population size.
Senate seats are not assigned based on congressional districts - Apex
The minimum size of an Excel workbook is 1 spreadsheet.
There is no physical minimum door size - custom doors can be made to any size. There might be building codes for your area specifying what the minimum door size is for a commercial or residential structure, though...
The minimum size of a standard South African bedroom is 4000x2500
The minimum size home wiring is #14 AWG, the rating for that size wire is 15 amps.