The side lengths of triangle ABC are 3, 4, and 5. Which set of ordered pairs form a triangle that is congruent to triangle ABC?

A triangle with side lengths 3, 4, and 5 is a right triangle. In choice A, the points (−3,1) and (−3,5) are 4 units apart, and (−3,5) and (0,5) are 3 units apart; these sides meet at a right angle. The third side is √(4² + 3²) = 5, so this triangle has the same side lengths as triangle ABC and is congruent to it.

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