* That a value is ''wrong'' simply because it is imprecise. To the nearest [[whole number]], the value is correct<ref name="math" />, and it was quite common at the time to round to whole numbers.<ref name="jph">{{cite web
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* That a value is ''wrong'' simply because it is imprecise. To the nearest [[whole number]], the value is completely correct<ref name="math" /> even if taken as a perfect circle if the diameter is greater than 9.5 and less than about 9.708 and the circumference is greater than about 29.845 and less than 30.5, and it was quite common at the time to round to whole numbers.<ref name="jph">{{cite web