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The useful minimum bounding circle of three points is defined either by the circumcircle (where three points are on the minimum bounding circle) or by the two points of the longest side of the triangle (where the two points define a diameter of the circle). It is common to confuse the minimum bounding circle with the circumcircle.
The quadrature of the circle does not have a solid construction. A regular n-gon has a solid construction if and only if n=2 a 3 b m where a and b are some non-negative integers and m is a product of zero or more distinct Pierpont primes (primes of the form 2 r 3 s +1).
In geometry, a circumscribed circle for a set of points is a circle passing through each of them. Such a circle is said to circumscribe the points or a polygon formed from them; such a polygon is said to be inscribed in the circle. Circumcircle, the circumscribed circle of a triangle, which always exists for a given triangle.
This circle is called the incircle of the quadrilateral or its inscribed circle, its center is the incenter and its radius is called the inradius. Since these quadrilaterals can be drawn surrounding or circumscribing their incircles, they have also been called circumscribable quadrilaterals , circumscribing quadrilaterals , and circumscriptible ...
ISG Ltd (formerly Interior Services Group) is a privately owned, London-based construction company that employed around 3,000 people, mainly in the UK, mainland Europe and the Middle East. In terms of turnover , at one point it was the sixth biggest contractor in the UK; it went into administration in September 2024.
In 1884, the London and Tilbury Lighterage Company Limited was formed to transfer goods by sailing barge to and from ships on the River Thames, London, England. [2] A lighterage is the fee paid for the use of a lighter , [ 3 ] a large, open, flat bottomed barge, that could transport goods a short distance in shallow waters. [ 4 ]
The firm was founded as John Mowlem and Co. by the stonemason John Mowlem in London in 1822. [1] The company undertook a variety of jobs across London throughout the mid-nineteenth century; early activities were centred around paving and roadworks at the behest of various local authorities.
The origins of Trollope and Colls Ltd can be traced back to 1778 and two distinct businesses founded by the Trollope and Colls families. [1] Both firms had their background in interior decoration (Joseph Trollope was a wallpaper hanger while Benjamin Colls was a painter and decorator) and were both based in London for much of their existence.