How many districts have an area of 17.72 KM2?
CREATE TABLE table_16435 (
    "English name" text,
    "Original name" text,
    "Area in km\u00b2" text,
    "Population at 2010 Census" real,
    "Number of settlements and villages" real
)
SELECT COUNT("English name") FROM table_16435 WHERE "Area in km\u00b2" = '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_16435 (
    "English name" text,
    "Original name" text,
    "Area in km\u00b2" text,
    "Population at 2010 Census" real,
    "Number of settlements and villages" real
) ### Response: SELECT COUNT("English name") FROM table_16435 WHERE "Area in km\u00b2" = '17.72'