The outer boroughs of the 32 London Boroughs are the formal boundaries. If a district isn't in a London Borough, then it isn't in London. The informal boundary of London is anywhere within the M25 ring road.
A formal region
A formal region
A formal region is defined by structured boundaries such as cities, counties, or countries based on specific characteristics like language spoken or political boundaries.
The boundaries of London roughly follow the line of the M25 motorway.
Boston is not considered a formal region in geographic terms. Formal regions are typically defined by governmental or administrative boundaries, whereas Boston is a city with social, cultural, and economic characteristics that can vary within its geographical boundaries.
Greater London and the City of London which is a semi-autonomous region within Greater London.
A formal region is defined by governemtn/administratives boundaries.......such as states countires and cities.
The Great Sphinx of Giza
The formal region of the Philippines is defined by its political boundaries, including the archipelago's land area and the territories it governs. These boundaries are recognized by international agreements and legal frameworks that establish the country's sovereignty.
There is no abbreviation for London in formal use. However, London can be known as Ldn colloquially, pronounced el-de-en.
Greater London has two 'cities' within its boundaries. The 'City of London' (usually just referred to as 'The City') and the City of Westminster.
The circumference of Greater London is approximately 120 miles (193 kilometers). This measurement can vary slightly depending on the specific route taken around the outer boundaries of the Greater London area. The city is defined by its administrative boundaries, which encompass various boroughs and districts.