Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_10 (area__km²_ INTEGER, density___km²_ VARCHAR)
### Question:
What's the Area with a Density of 263?
### Answer:
SELECT AVG(area__km²_) FROM table_name_10 WHERE density___km²_ = 263