Question

Which set of side lengths can be used to construct a triangle?

Answer 1

9514 1404 393

Answer:

  D  75 inches, 55 inches, 45 inches

Step-by-step explanation:

The sum of the two shortest sides must exceed the length of the longest side. This is only the case for choice D.

  A. 45+55 < 110

  B. 45+45 = 90 . . . . needs to be greater, not equal

  C. 35+45 < 100

  D. 45+55 > 75 . . . . will form an obtuse triangle