How many districts have an area of 17.72 KM2?
CREATE TABLE table_1104312_5 (
    english_name VARCHAR,
    area_in_km² VARCHAR
)
SELECT COUNT(english_name) FROM table_1104312_5 WHERE area_in_km² = "17.72"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many districts have an area of 17.72 KM2? ### Input: CREATE TABLE table_1104312_5 (
    english_name VARCHAR,
    area_in_km² VARCHAR
) ### Response: SELECT COUNT(english_name) FROM table_1104312_5 WHERE area_in_km² = "17.72"