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journal article
Approximating π Using Similar Triangles
Ryota Matsuura
The Mathematics Teacher
Vol. 105, No. 8 (April 2012), pp. 632-636 (5 pages)
Published By: National Council of Teachers of Mathematics
https://doi.org/10.5951/mathteacher.105.8.0632
https://www.jstor.org/stable/10.5951/mathteacher.105.8.0632
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