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The surface area of a polyhedron is the sum of areas of its faces, for definitions of polyhedra for which the area of a face is well-defined. The geodesic distance between any two points on the surface of a polyhedron measures the length of the shortest curve that connects the two points, remaining within the surface.
A simple application of dimensional analysis to mathematics is in computing the form of the volume of an n-ball (the solid ball in n dimensions), or the area of its surface, the n-sphere: being an n-dimensional figure, the volume scales as x n, while the surface area, being (n − 1)-dimensional, scales as x n−1.
Surface area of a Dyson sphere with a radius of 1 AU 10 24: 1 yotta square meter (m 2) 1 square terametre (Tm 2) 1.9 Tm 2: Area swept by Jupiter's orbit around the Sun 6.4 Tm 2: Area swept by Saturn's orbit around the Sun 8.5 Tm 2: Surface area of the red supergiant star Betelgeuse: 10 25 24 Tm 2: Surface area of the hypergiant star VY Canis ...
The circle is the shape with the largest area for a given length of perimeter (see Isoperimetric inequality). The circle is a highly symmetric shape: every line through the centre forms a line of reflection symmetry, and it has rotational symmetry around the centre for every angle. Its symmetry group is the orthogonal group O(2,R).
With a reduced bore and stroke at 88 mm × 82.1 mm (3.46 in × 3.23 in) and reduced compression ratio at 10.7:1, DE 30 LA is turbocharged with twin IHI turbochargers for 245 kW (329 hp; 333 PS) at 5,250–6,000rpm and 480 N⋅m (354 lb⋅ft) of torque at 1,600–4,000rpm and weighs in at 179.2 kg DIN. [7]
The first popular widescreen ratio for computer displays was 16:10, and 16:9 has been the most common ratio since 2012. The display aspect ratio ( DAR ) is the aspect ratio of a display device and so the proportional relationship between the physical width and the height of the display .
Sir Isaac Newton (25 December 1642 – 20 March 1726/27 [a]) was an English polymath active as a mathematician, physicist, astronomer, alchemist, theologian, and author who was described in his time as a natural philosopher. [5]
A-10C combat exercise at Nevada Test & Training Ground against hard targets. The A-10's primary built-in weapon is the 30×173 mm GAU-8/A Avenger autocannon. One of the most powerful aircraft cannons ever flown, the GAU-8 is a hydraulically driven seven-barrel rotary cannon designed for the anti-tank role with a high rate of fire.