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The entire yellow square is one square mile; the dark blue area at right represents 100 acres. The acre (/ ˈeɪkər / AY-kər) is a unit of land area used in the British imperial and the United States customary systems. It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 10 square ...
square mile: sq mi ≡ 1 mi × 1 mi ≡ 2.589 988 110 336 × 10 6 m 2: square mile (US Survey) sq mi ≡ 1 mi (US) × 1 mi (US) ≈ 2.589 998 47 × 10 6 m 2: square rod/pole/perch: sq rd ≡ 1 rd × 1 rd = 25.292 852 64 m 2: square yard (International) sq yd ≡ 1 yd × 1 yd ≡ 0.836 127 36 m 2: stremma: ≡ 1000 m 2 = 1000 m 2: township: ≡ ...
The British Empire (red) and Mongol Empire (blue) were the largest and second-largest empires in history, respectively. The precise extent of the either empire at its greatest territorial expansion is a matter of debate among scholars. Several empires in human history have been contenders for the largest of all time, depending on definition and ...
The acre-foot is a non- SI unit of volume equal to about 1,233 m 3 commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, irrigation water, [1] and river flows. An acre-foot equals approximately an eight-lane swimming pool, 82 ft (25 m) long, 52 ft (16 m) wide ...
List of islands by area. Dymaxion map (Fuller map) with continental landmasses (I,II,III,IV) and largest islands (1–30) roughly to scale. This list includes all islands in the world larger than 1,000 km 2 (390 sq mi). For size and location reference, the four continental landmasses are also shown.
The entire yellow square is one square mile. The hectare (/ ˈhɛktɛər, - tɑːr /; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100- metre sides (1 hm 2), that is, 10,000 square metres (10,000 m 2), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre.
In Israel and Turkey, the dunam is 1,000 square metres (10,764 sq ft), which is 1 decare. From the Ottoman period and through the early years of the British Mandate for Palestine , the size of a dunam was 919.3 square metres (9,895 sq ft), but in 1928, the metric dunam of 1,000 square metres (0.10 ha) was adopted, and this is still used today ...
Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 mi × 20 mi) has an area of 400 sq mi; a rectangle of measuring 10 mi × 40 mi also has an area of 400 sq mi, but is not 20 miles square.