Friday, 3 November 2017

. Among all shapes with the same perimeter a circle has the largest area. 

. Among all shapes with the same area circle has the shortest perimeter 

. 40 when written "forty" is the only number with letters in alphabetical order, while "one" is the only one with letters in reverse order

. 'FOUR' is the only number in the English language that is spelt with the same number of letters as the number itself

 . From 0 to 1,000, the letter "A" only appears in 1,000 ("one thousand") 

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