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Midway between this islet and the rock the navigators sighted the Pago Pago harbor, which was marked by "a conical hill on its western side and a flat elliptical topped hill to the eastward." Leone village, large and prosperous, was sighted to the west of the island. To the south-east of the island is the Aunu'u islet. [15]
Geographical distance or geodetic distance is the distance measured along the surface of the Earth, or the shortest arch length. The formulae in this article calculate distances between points which are defined by geographical coordinates in terms of latitude and longitude. This distance is an element in solving the second (inverse) geodetic ...
Angular distance or angular separation is the measure of the angle between the orientation of two straight lines, rays, or vectors in three-dimensional space, or the central angle subtended by the radii through two points on a sphere.
Alt and Godau [4] describe a simpler algorithm to compute the weak Fréchet distance between polygonal curves, based on computing minimax paths in an associated grid graph. The discrete Fréchet distance, also called the coupling distance, is an approximation of the Fréchet metric for polygonal curves, defined by Eiter and Mannila. [6]
Sight distance, in the context of road design, is defined as "the length of roadway ahead visible to the driver".[1] Sight distance is how far a road user (usually a vehicle driver) can see before the line of sight is blocked by a hill crest, or an obstacle on the inside of a horizontal curve or intersection.
The Kazakhstan–Russia border [a] is the 7,644-kilometre (4,750 mi) international border between the Republic of Kazakhstan and the Russian Federation. [1] It is the longest continuous international border in the world and the second longest by total length, after the Canada–United States border. [2]
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