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It was discovered that pi was actually used in building the pyrimads of Giza around 2600-2500BC. The perimter of the pyrimads were 1760 cubits and the height of the pyrimad was 280 cubits. This is a ratio of 2pi. 1760:280 = 2pi. This is the first recognition of pi.
1760 is in the 1760's. Thus, 1760-1769 is a decade.
2% of 1760 = 2% * 1760 = 0.02 * 1760 = 35.2
1760 + 1760 + 176...
1760