The answer is 20, 21, 29 and 12, 35, 37
12, 35, and 37 is 6 less so that the answer is 11, 32, 34
The groups of side lengths that can form a right triangle are 20, 21, 29 and 12, 35, 37 based on the Pythagorean theorem. Both sets satisfy the equation c 2 = a 2 + b 2 . Other groups listed do not hold true under this formula.
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