Right Interior Exterior
34-478: Torrens Parade Ground , which includes the former Torrens Training Depot and Drill Hall , is a former military facility located in Adelaide , South Australia . The Parade Ground lies behind Government House , between King William Street and Kintore Avenue , with Victoria Avenue on its southern border. The Pioneer Women's Memorial Garden lies to the north-west. South Australia's Vietnam War Memorial, and
68-400: A right angle is an angle of exactly 90 degrees or π {\displaystyle \pi } / 2 radians corresponding to a quarter turn . If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles. The term is a calque of Latin angulus rectus ; here rectus means "upright", referring to
102-487: A headquarters for veterans' organisations, and the main office of the History Trust of South Australia . In 2021, the government announced that there would be a significant development; the grounds would be ripped up and gardens would be put in its place. The Drill Hall underwent a major upgrade which was scheduled for completion at the end of January 2023. The History Trust of South Australia had its offices in
136-428: A large number of medium to low density apartments , townhouses and detached houses which make up the residential portion of the city centre. The layout of Adelaide, sometimes referred to as "Light's Vision", features a cardinal direction grid pattern of wide streets and terraces and five large public squares: Victoria Square in the centre of the city, and Hindmarsh , Light , Hurtle and Whitmore Squares in
170-577: A number of prominent settlers after themselves, after early directors of the South Australian Company , after Colonisation Commissioners of South Australia (appointed by the British government to oversee implementation of the acts that established the colony), and after various notables involved in the establishment of the colony. The Street Naming Committee comprised: All members of the committee (except Stephens) had one or more of
204-527: A proof as well but using a more explicit assumption. In Hilbert 's axiomatization of geometry this statement is given as a theorem, but only after much groundwork. One may argue that, even if postulate 4 can be proven from the preceding ones, in the order that Euclid presents his material it is necessary to include it since without it postulate 5, which uses the right angle as a unit of measure, makes no sense. A right angle may be expressed in different units: Throughout history, carpenters and masons have known
238-541: A quick way to confirm if an angle is a true right angle. It is based on the Pythagorean triple (3, 4, 5) and the rule of 3-4-5. From the angle in question, running a straight line along one side exactly three units in length, and along the second side exactly four units in length, will create a hypotenuse (the longer line opposite the right angle that connects the two measured endpoints) of exactly five units in length. Thales' theorem states that an angle inscribed in
272-465: A right angle) and obtuse angles (those greater than a right angle). Two angles are called complementary if their sum is a right angle. Book 1 Postulate 4 states that all right angles are equal, which allows Euclid to use a right angle as a unit to measure other angles with. Euclid's commentator Proclus gave a proof of this postulate using the previous postulates, but it may be argued that this proof makes use of some hidden assumptions. Saccheri gave
306-621: A right angle. Right angles are fundamental in Euclid's Elements . They are defined in Book 1, definition 10, which also defines perpendicular lines. Definition 10 does not use numerical degree measurements but rather touches at the very heart of what a right angle is, namely two straight lines intersecting to form two equal and adjacent angles. The straight lines which form right angles are called perpendicular. Euclid uses right angles in definitions 11 and 12 to define acute angles (those smaller than
340-560: A triangle is a right triangle . In Unicode , the symbol for a right angle is U+221F ∟ RIGHT ANGLE ( ∟ ). It should not be confused with the similarly shaped symbol U+231E ⌞ BOTTOM LEFT CORNER ( ⌞, ⌞ ). Related symbols are U+22BE ⊾ RIGHT ANGLE WITH ARC ( ⊾ ), U+299C ⦜ RIGHT ANGLE VARIANT WITH SQUARE ( ⦜ ), and U+299D ⦝ MEASURED RIGHT ANGLE WITH DOT ( ⦝ ). In diagrams,
374-869: Is known as "Mad March", due to the large number of other cultural festivities at the same time, including the Adelaide 500 and WOMADelaide . North Terrace is considered Adelaide's "cultural boulevard" because it is home to the State Library of South Australia , the South Australian Museum , the Migration Museum , the Art Gallery of South Australia , the University of Adelaide , the city campus of University of South Australia , and several smaller galleries. Lonely Planet labelled Adelaide "Australia's live music city", and
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#1732776539366408-619: Is the inner city locality of Greater Adelaide , the capital city of South Australia . It is known by locals simply as "the City" or "Town" to distinguish it from Greater Adelaide and from the City of Adelaide local government area (which also includes North Adelaide and from the Park Lands around the whole city centre). The residential population was 18,202 in the 2021 census , with a local worker population of 130,404 . Adelaide city centre
442-555: The Aboriginal and Torres Strait Islander War Memorial (by Robert Hannaford ) are located in the grounds. The area was formerly used as a quarry for extracting stone and fill for building government buildings. The Torrens Training Depot and Drill Hall were built in 1936. The parade ground and drill hall were listed on the South Australian Heritage Register on 11 June 1998. Its significance
476-898: The Art Gallery of South Australia , the State Library of South Australia , the South Australian Museum , the Migration Museum , the Adelaide Botanic Garden , the University of Adelaide and the "CityEast" campus of the UniSA The population was 18,202 in the 2021 census , 41 percent born in Australia. The next most common countries of birth were China 15.7%, India 3.7%, England 3.6%, Malaysia 3.6%, and Hong Kong 2.7%. 49.1% of people spoke only English at home. Other languages spoken at home included Mandarin 17.8%, Cantonese 4.2%, Vietnamese 2%, Hindi 1.5%, and Korean 1.5%. The most common response for religion in Adelaide
510-573: The British colonisation of South Australia , the Adelaide Plains , on which Adelaide was built, were home to the Kaurna group of Aboriginal Australians . The colony of South Australia was established in 1836 at Glenelg , and the city itself established in 1837. The location and characteristic grid layout of the city and North Adelaide, as well as the surrounding parklands, were the result of
544-445: The Kaurna language to each place, was mostly completed in 2003, and the renaming of 39 sites finalised and endorsed by the council in 2012. The City of Adelaide Council has defined a number of neighbourhood precincts in the city centre, each with a character of their own: In addition to these, the north-eastern side of North Terrace is often referred to as the "North Terrace cultural precinct" or "cultural boulevard", and includes
578-720: The Drill Hall for 18 years, before relocating in 2022 to allow for the creation of a "veterans' hub" comprising the Department for Veteran Affairs, Returned Services League (RSL) South Australia, Vietnam Veterans Association, Air Force Association, and Legacy Club of South Australia and Broken Hill. The Torrens Parade Ground and Drill Hall are used as venues for various events, such as for the Adelaide Fringe , fashion events and one-off markets. Adelaide city centre Adelaide city centre ( Kaurna : Tarndanya )
612-459: The centres of each of the four quadrants of the Adelaide city centre. These squares occupy 32 of the 700 numbered town acre allotments on Light's plan. All east–west roads change their names as they cross King William Street, except for North and South terraces. They also alternate between being wide and narrow, 99 and 66 feet (30 and 20 m), except for the central Grote and Wakefield which are extra-wide, 132 feet (40 m), along with
646-432: The city retains a notable portion of Victorian architecture. Adelaide is separated from its greater metropolitan area by a ring of public parklands on all sides. The so-called "square mile" within the park lands is defined by a small area of high rise office and apartment buildings in the centre north, around King William Street , which runs north-to-south through the centre. Surrounding this central business district are
680-792: The city was recognised as a " City of Music " by the UNESCO Creative Cities Network in 2015. Although there were many pubs hosting live music in the CBD in past, the number has slowly diminished. Two remain very popular with musicians and patrons alike: Sydney Melbourne Brisbane Adelaide Perth Hobart Darwin Canberra 34°55′43″S 138°36′00″E / 34.92861°S 138.60000°E / -34.92861; 138.60000 Right angles Adjacent Vertical Complementary Supplementary Dihedral In geometry and trigonometry ,
714-475: The fact that an angle is a right angle is usually expressed by adding a small right angle that forms a square with the angle in the diagram, as seen in the diagram of a right triangle (in British English, a right-angled triangle) to the right. The symbol for a measured angle, an arc, with a dot, is used in some European countries, including German-speaking countries and Poland, as an alternative symbol for
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#1732776539366748-536: The most notable buildings in Adelaide of this style to be constructed pre World War Two. The internal arrangement of the building typifies the functional organisation of the Army and its physical requirements. All external detailing which is original to the 1936 building is significant. Internally the open unrestricted form of the drill hall is the most significant aspect. The topography of the Parade Ground indicates
782-608: The previous use of this area as a quarry for stone and fill for the construction of government buildings, including Government House. [Adapted from Torrens Training Depot Conservation Plan (1992)] In 1999, it was listed on the now-defunct Register of the National Estate In 2002 Premier Mike Rann announced and funded a major restoration and upgrade of the Torrens Parade Ground and its heritage listed "Drill Hall and Training Depot" building, to be used as
816-494: The right angle basic to trigonometry. The meaning of right in right angle possibly refers to the Latin adjective rectus 'erect, straight, upright, perpendicular'. A Greek equivalent is orthos 'straight; perpendicular' (see orthogonality ). A rectangle is a quadrilateral with four right angles. A square has four right angles, in addition to equal-length sides. The Pythagorean theorem states how to determine when
850-787: The seat has been held by Lucy Hood of the Labor party. Adelaide's cultural and entertainment precincts/venues are generally concentrated in the city centre, including the Convention Centre ; the Adelaide Oval is just north of the Torrens within the parklands and easily accessible from the city. Most of the events relating to the Adelaide Festival and Adelaide Fringe are held within Adelaide's city centre and surrounding parklands during February and March. This time
884-490: The streets and squares in the Adelaide city centre and North Adelaide named after themselves. Brown Street, named for John Brown, was subsequently subsumed as a continuation of Morphett Street in 1967. In the same year, Hanson Street, named for Richard Hanson , was subsumed as a continuation of Pulteney Street . The squares were named after: The east–west streets named on 22 December 1836 were: Most of these people did not reside in or visit South Australia. The naming of
918-415: The streets was completed on 23 May 1837 and gazetted on 3 June. East–west streets: North–south streets: The Adelaide City Council began the process of dual naming all of the city squares, each of the parks making up the parklands which surround the city centre and North Adelaide , and other sites of significance to the Kaurna people in 1997. The naming process, which assigned an extra name in
952-532: The surrounding four terraces. In the south half of the city, in several places the Adelaide City Council has constructed wide footpaths and road markings to restrict traffic to a lesser number of lanes than the full width of the road could support. The street pairs, design widths, and town acres in Light's Vision are illustrated in this diagram: The streets and squares were named by a committee of
986-400: The vertical perpendicular to a horizontal base line. Closely related and important geometrical concepts are perpendicular lines, meaning lines that form right angles at their point of intersection, and orthogonality , which is the property of forming right angles, usually applied to vectors . The presence of a right angle in a triangle is the defining factor for right triangles , making
1020-463: The work of Colonel William Light (1786–1839), who was the first Surveyor General of South Australia . The area where the Adelaide city centre now exists was once known as "Tarndanya", the Kaurna word for as "male red kangaroo rock", which was the name used for an area along the south bank of what is now known as the River Torrens ( Karrawiri Pari ), which flows through Adelaide. Adelaide
1054-712: Was " No Religion " at 52.9% of the population. At federal level, Adelaide is within the Division of Adelaide , a marginal seat which historically has alternated between the Liberal and Labor parties. It has been held since 2019 by Steve Georganas of the Labor party. In the South Australian House of Assembly , Adelaide is within the Electoral district of Adelaide . Since the March 2022 state election,
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1088-403: Was not as badly affected by the 1860s economic depression in Australia as other gold rush cities like Sydney and Melbourne , allowing it to prosper. Historian F.W. Crowley noted that the city was full of elite upper-class citizens which provided a stark contrast to the grinding poverty of the labour areas and slums outside the inner city ring. Due to its historic wealth during the 20th century,
1122-435: Was planned in 1837 on a greenfield site following a grid layout , with streets running at right angles to each other. It covers an area of 4.33 square kilometres (1.67 square miles) and is surrounded by 6.68 square kilometres (2.58 square miles) of park lands. Within the city are five parks: Victoria Square in the exact centre and four other, smaller parks. Names for elements of the city centre are as follows: Before
1156-564: Was reported as follows: The Torrens Training Depot was built in 1936 and is an excellent example of the Inter-War Stripped Classical style of architecture in Adelaide, particularly as interpreted by architects working for the Commonwealth Government. The strictly symmetrical design of the building and its low scale with simplified classical motifs and Art Deco decorative elements make this one of
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