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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.
In geometry, an isosceles triangle (/ aɪ ˈ s ɒ s ə l iː z /) is a triangle that has two sides of equal length and two angles of equal measure. Sometimes it is specified as having exactly two sides of equal length, and sometimes as having at least two sides of equal length, the latter version thus including the equilateral triangle as a special case.
Any non-self-crossing quadrilateral with exactly one axis of symmetry must be either an isosceles trapezoid or a kite. [5] However, if crossings are allowed, the set of symmetric quadrilaterals must be expanded to include also the crossed isosceles trapezoids, crossed quadrilaterals in which the crossed sides are of equal length and the other sides are parallel, and the antiparallelograms ...
The 118-storey, 599 m (1,965 ft) Ping An International Finance Centre in Shenzhen, China, is the tallest building in the 300-599 meter "supertall" class. According to the CTBUH, a supertall building is defined as a building between 300 and 599 m (984 and 1,965 ft) in height.
Tinggi Setapak National Secondary School (Malay: Sekolah Menengah Kebangsaan Tinggi Setapak) is a national secondary school in Kuala Lumpur, Malaysia.Established in 1955, it is an all-boys school, with the exception of the coed Sixth Form.