LYCOS RETRIEVER
Archimedes: Triangle
built 275 days ago
Archimedes helped develop the science of geometry. He proved that the area enclosed by a parabola and a straight line is 4/3 multiplied by the area of a triangle with equal base and height.
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It has ... been claimed by the Arab scholar Abu'l Raihan Muhammed al-Biruni that Heron's formula for calculating the area of a triangle from the length of its sides was known to Archimedes. However, the first reliable reference to the formula is given by Heron of Alexandria in the 1st century AD.
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Triangles formed by two tangents to a parabola and the chord connecting the points of tangency have been used by Archimedes in his study of the area of parabolic segments and bear his name. The chord is usually considered the base of the triangle.
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