Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_81 ( area__km_2__ INTEGER, location VARCHAR, area__sq_mi_ VARCHAR )

### Question ###
What is the area located in Rhode Island with more than 38 sq mi area?

### Accurate SQL ###

SELECT AVG(area__km_2__) FROM table_name_81 WHERE location = "rhode island" AND area__sq_mi_ > 38