40
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47 degrees
43 because 43 + 47 = 50.
The complementary angle is 15 degrees
A supplementary angle can not be a complementary angle. The complementary angle has 2 angles equal 90... but a supplementary angle is X2 that much (108). * * * * * Nearly correct. 90 x 2 is 180, not 108!
Without the diagram, we'd just be guessing.