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triangle , in mathematics

(Encyclopedia)triangle, in mathematics, plane figure bounded by three straight lines, the sides, which intersect at three points called the vertices. Any one of the sides may be considered the base of the triangle....

Fort Dix

(Encyclopedia)Fort Dix: see Joint Base McGuire-Dix-Lakehurst. ...

Dix, Fort

(Encyclopedia)Dix, Fort: see Joint Base McGuire-Dix-Lakehurst. ...

Area 51

(Encyclopedia)Area 51, name for a U.S. military site, S Nev., c.80 mi (130 km) NNW of Las Vegas. Shrouded in secrecy since the mid-20th cent., it is located within the U.S. Air Force's enormous Nevada Test and Trai...

Fernando de Noronha

(Encyclopedia)Fernando de Noronha fərnänˈdo͝o dĭ no͝orôˈnyə [key], group of 21 islands, c.10 sq mi (26 sq km), in the Atlantic Ocean, c.225 mi (360 km) off the northeast coast of Brazil. A federal territor...

Scapa Flow

(Encyclopedia)Scapa Flow skăpˈə [key], area of water, 15 mi (24 km) long and 8 mi (12.9 km) wide, in the Orkney Islands, off N Scotland. It is bounded by the islands of Mainland, Graemsay, Burray, South Ronaldsa...

sepal

(Encyclopedia)sepal, a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flower parts in...

Pine Barrens

(Encyclopedia)Pine Barrens, coastal plain region, c.3,000 sq mi (7,770 sq km), S and SE N.J.; composed chiefly of sandy soils, swamp-edged streams, pine stands, and tracts of cranberries and blueberries. Originally...

Santa Ana de Coro

(Encyclopedia)Santa Ana de Coro kōˈrō [key], city (1990 pop. 124,506), capital of Falcón state, NW Venezuela, 7 mi (11.3 km) from the Caribbean Sea, and at the base of the Paraguaná peninsula. The development ...

Wake Island

(Encyclopedia)Wake Island, atoll with three islets (Wake, Wilkes, and Peale), 3 sq mi (7.8 sq km), central Pacific, between Hawaii and Guam. It is a U.S. military base and scientific research center under the juris...