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_55397 ( "English name" text, "Original name" text, "Area in km\u00b2" real, "Population at 2010 Census" real, "Number of settlements and villages" real )

### Question ###
There are less than 11 settlements in Kecamatan Bogor Tengah, what is the area in km ?

### Accurate SQL ###

SELECT SUM("Area in km\u00b2") FROM table_55397 WHERE "Original name" = 'kecamatan bogor tengah' AND "Number of settlements and villages" < '11'