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_19592 ( "INEGI code" real, "Municipality" text, "Municipal Seat" text, "Area (km 2 )" text, "Population (2005)" real, "Population density (/km 2 )" text, "Human Development Index (2000)" text )

### Question ###
What is the area (km 2) where the population density (/mk2) is 84.3?

### Accurate SQL ###

SELECT "Area (km 2 )" FROM table_19592 WHERE "Population density (/km 2 )" = '84.3'