Question

24 POINTS!!!!!!!!!!!!!!!!!!
m∠ABC=138° and m∠DEF=31° .

Which statement is true about ∠ABC and​ ∠DEF ​?

The angles are complementary.

The angles are supplementary.

The angles are neither complementary nor supplementary.

Answer 1

The answer is the angles are neither complementary nor supplementary, because complementary is to add up to 90° and supplementary is to add up to 180°, and these angles add up to 169°. I hope this helps!

Answer 2

138 + 31 = 169
The angles are complementary. sum = 90
The angles are supplementary. sum =180

so
answer:
The angles are neither complementary nor supplementary.