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PR is the diameter of a circle centered on O; its radius AO is the arithmetic mean of a and b. Using the geometric mean theorem, triangle PGR's altitude GQ is the geometric mean. For any ratio a:b, AO ≥ GQ. A semicircle can be used to construct the arithmetic and geometric means of two lengths using straight-edge and compass.
The Royal Crescent is a row of 30 terraced houses laid out in a sweeping crescent in the city of Bath, England.Designed by the architect John Wood, the Younger, and built between 1767 and 1774, it is among the greatest examples of Georgian architecture to be found in the United Kingdom and is a Grade I listed building.
The rise (height) of a round arch is limited to 1 ⁄ 2 of its span, [7] so it looks more "grounded" than a parabolic arch [3] or a pointed arch. [7] Whenever a higher semicircular arch was required (for example, for a narrow arch to match the height of a nearby broad one), either stilting or horseshoe shape were used, thus creating a stilted arch and horseshoe arch respectively. [8]
by the geometrical shape of its intrados (for example, semicircular, triangular, etc.); [26] [27] for the arches with rounded intrados, by the number of circle segments forming the arch (for example, round arch is single-centred, pointed arch is two-centred); [26] by the material used (stone, brick, concrete, steel) and construction approach. [26]
The Circus is a historic ring of large townhouses in the city of Bath, Somerset, England, forming a circle with three entrances. Designed by architect John Wood, the Elder, it was built between 1754 and 1768, [2] and is regarded as a pre-eminent example of Georgian architecture. "Circus" (Latin) means a ring, oval or circle in English.
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The cross-section is slightly more than a semi-circle so that the bottom of the hut curves inwards slightly. The exterior is formed from curved corrugated steel sheets 10 feet 6 inches (320 cm) by 2 feet 2 inches (66 cm), laid with a two-corrugation lap at the side and a 6-inch (15 cm) overlap at the ends. Three sheets cover the arc of the hut.
Like many renowned companies, Mattel began as a startup in a garage. In 1945, husband and wife, Ruth and Elliot Handler, teamed up with Harold “Matt” Matson to collaborate on innovative toys ...