Which one of the following does not list the sides of a right triangle? A. 1, √3, 2 B. 2, 2, 2√2 C. √3, √4, √5 D. 3, 4, 5 E. 30, 40, 50

The correct answer is (C). Any triangle satisfying the Pythagorean Theorem will be a right triangle. The only one of these 5 choices that does NOT is √3, √4, √5. If we write (√3)² + (√4)² = (√5)², it becomes 3 + 4 = 5, which is NOT a true statement. The correct answer is C. ---------- A is also a correct answer.

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