52. Which of the following sets of 3 lengths, in decimeters, are the side lengths of an obtuse triangle?

(Note: An obtuse triangle has 1 angle whose measure is greater than 90° and less than 180°.)

Answer and Explanation

Your Answer is

Correct Answer is K

Explanation

For an obtuse triangle, a2+b2< c2, so you can compare the options one by one< /p>