Abstract
From a piece of cardboard (or paper) cut two squares, each side 4 in., and weigh them on a physical balance. They weigh the same because they are of the same material and shape.
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© 1967 D. M. Neal and D. J. New
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Neal, D.M., New, D.J. (1967). Measurement of Area. In: Working With Arithmetic. Palgrave, London. https://doi.org/10.1007/978-1-349-00043-2_6
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DOI: https://doi.org/10.1007/978-1-349-00043-2_6
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-00045-6
Online ISBN: 978-1-349-00043-2
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