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Shoelace scheme for determining the area of a polygon with point coordinates (,),..., (,). The shoelace formula, also known as Gauss's area formula and the surveyor's formula, [1] is a mathematical algorithm to determine the area of a simple polygon whose vertices are described by their Cartesian coordinates in the plane. [2]
Solution of triangles (Latin: solutio triangulorum) is the main trigonometric problem of finding the characteristics of a triangle (angles and lengths of sides), when some of these are known.
The altitude from A (dashed line segment) intersects the extended base at D (a point outside the triangle). In geometry, an altitude of a triangle is a line segment through a given vertex (called apex) and perpendicular to a line containing the side or edge opposite the apex.
The Golden Triangle of Jakarta (Indonesian: Segitiga Emas Jakarta), also referred to as the Medan Merdeka–Thamrin–Sudirman Axis (Indonesian: Poros Medan Merdeka–Thamrin–Sudirman) or the Sudirman–Thamrin–Kuningan Axis (Indonesian: Poros Sudirman–Thamrin–Kuningan), is a roughly triangular area in the center of Jakarta, Indonesia, extending from Central Jakarta to South Jakarta.
The Derajat Brigade had its winter headquarters at Dera Ismail Khan, and the garrison consisted of a mountain battery, a regiment of Native cavalry, and three regiments of Native infantry. Detachments from these regiments helped to garrison the outposts of Drazinda , Jandola , and Jatta .