SOLUTION: Two adjacent angles whose exterior sides are opposite rays are complementary. always sometimes never

Question 1072977: Two adjacent angles whose exterior sides are opposite rays are complementary.
always
sometimes
never
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
if the exterior sides are opposite rays, then they form a straight line.
as such, the angles will always be supplementary.
this means their sum will always be 180 degrees.
if the angles were complementary, their sum would always be 90 degrees.
that will never happen if they are opposite rays.

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