Question

Which set of angle measures could be the interior angles of a triangle?
A. 90*, 90*, 90*
B. 80*, 80*, 200*
C. 40*, 50*, 60*
D. 15*, 30*, 135*

Answer 1

Triangle angles add to 180 degrees.  Not A, that's 270.  Not B, that's 360.  Not C, that's 150.

Answer:  D. 15°, 30°, 135°

I'll note A and B technically aren't even sets.