\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2013b.00837}
\itemau{Nishiyama, Yutaka}
\itemti{Measuring areas: from polygons to land maps.}
\itemso{Int. J. Pure Appl. Math. 81, No. 1, 91-100 (2012).}
\itemab
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.
\itemrv{~}
\itemcc{M55 G95 I55}
\itemut{measurement of area; polygon; triangulation survey; Heron's formula; trapezoid formula; planimeter; Jacob Amsler; polar planimeter; linear planimeter}
\itemli{http://www.ijpam.eu/contents/2012-81-1/9/index.html}
\end