Mathematics

Identify whether the following pairs of angles are complementary or supplementary: 
$$63^o, 27^o$$


SOLUTION
If sum of two angles is $$180^o$$, then they are called supplementary angles. If sum of two angles is $$90^o$$. then they are called complementary angles. 
$$63^o + 27^o =90^o$$ These are complementary angles. 
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