Asked by Bob

suppose T is a right angle whose sides have a b c. is it possible that each of a b c is an odd integer?

Answers

Answered by drwls
No. There are many possible a,b,c combinations that obey the right angle rule
a^2 + b^2 = c^2
and for which a, b, and c are all integers.
However, if they all ODD integers,
a^2, b^2 and c^2 would also be odd. That is impossible because two odd integers add (or subtract) to make an even.
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