Which of the following triangle lengths form right triangles? Select all that apply.

For each set, use the largest length as the possible hypotenuse and check whether the squares of the other two lengths add to its square. For (10, 24, 26), 10² + 24² = 676 = 26²; for (12, 16, 20), 12² + 16² = 400 = 20²; and for (12, 35, 37), 12² + 35² = 1,369 = 37². The other sets do not satisfy this rule, so the correct choices are (10, 24, 26), (12, 16, 20), and (12, 35, 37).

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