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Measuring areas: from polygons to land maps. (English)
Int. J. Pure Appl. Math. 81, No. 1, 91-100 (2012).
Summary: The author explains how to measure area using both simple and complicated measurement methods. Elementary-school children obtain area by counting triangles; junior-high-school students use Cartesian coordinates; and high-school students study Heron’s formula. In this article, additional methods such as the trapezoid formula and Amsler’s linear planimeter are presented.
Classification: M55 G95 I55
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