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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.

Verified Answer :

baabaagreysheep

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!

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

so
answer:
The angles are neither complementary nor supplementary.

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