Volume: Perbedaan antara revisi
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Baris 105:
:<math>\pi r^2 h = \pi r^2 (2r) = (\tfrac{2}{3} \pi r^3) \times 3.</math>
Penemuan rasio volume bola dan tabung '''2 : 3''' ditemukan oleh [[Archimedes]].<ref>{{cite web |first=Chris |last=Rorres|url = http://www.math.nyu.edu/~crorres/Archimedes/Tomb/Cicero.html|title = Tomb of Archimedes: Sources|publisher = Courant Institute of Mathematical Sciences|accessdate = 2007-01-02|archiveurl=https://web.archive.org/web/20061209201723/http://www.math.nyu.edu/~crorres/Archimedes/Tomb/Cicero.html|archivedate=2004-09-08}}</ref>
== Penentuan rusuk, sisi dan titik ==
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