Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
There are less than 11 settlements in Kecamatan Bogor Tengah, what is the area in km²?

### Inputs:
table_name: table, columns: ['English name', 'Original name', 'Area in km²', 'Population at 2010 Census', 'Number of settlements and villages']

### Response:
SELECT SUM Area in km² FROM table WHERE Original name = kecamatan bogor tengah AND Number of settlements and villages < 11