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A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...
Maharashtra with a total area of 307,713 km 2 (118,809 sq mi), is the third-largest state by area in terms of land area and constitutes 9.36% of India's total geographical area. The State lies between 15°35' N to 22°02' N latitude and 72°36' E to 80°54' E longitude.
A week before the outbreak of World War II, the secret protocol of the Molotov–Ribbentrop Pact assigned Estonia to the Soviet Union's sphere of influence. [160] During the invasion of Poland , Joseph Stalin presented Estonia with an ultimatum, and the Estonian government signed the " Soviet–Estonian Mutual Assistance Treaty ", allowing the ...
Mexico, [a] [b] officially the United Mexican States, [c] is a country in the southern portion of North America.Covering 1,972,550 km 2 (761,610 sq mi), [12] it is the world's 13th largest country by area; with a population of over 130 million, it is the 10th most populous country and has the most Spanish speakers in the world. [1]
South Asia has a total area of 5.2 million sq.km (2 million sq.mi), which is 10% of the Asian continent. [30] The population of South Asia is estimated to be 2.04 billion [ 8 ] or about one-fourth of the world's population, making it both the most populous and the most densely populated geographical region in the world.
The deadliest night of the war came on March 9–10, 1945, the night of the American "Operation Meetinghouse" raid. [56] Nearly 700,000 incendiary bombs were dropped on the east end of the city (shitamachi, 下町), an area with a high concentration of factories and working-class houses. Two-fifths of the city were completely burned, more than ...
Finland has about 168,000 lakes (of area larger than 500 m 2 or 0.12 acres) and 179,000 islands. [107] Its largest lake, Saimaa, is the fourth largest in Europe. The Finnish Lakeland is the area with the most lakes in the country; [13] many of the major cities in the area, most notably Tampere, Jyväskylä and Kuopio, are
Certain areas in South Chennai have a hard rock surface. [50] [51] As of 2018, the city had a green cover of 14.9 per cent, with a per capita green cover of 8.5 square metres against the World Health Organization recommendation of nine square metres. [52] As of 2017, water bodies cover an estimated 3.2 km 2 (1.2 sq mi) area of the city. [53]