Mathematics

If true then enter $$1$$ and if false then enter $$0$$
Can two adjacent angles be complementary?


ANSWER

1


SOLUTION
Yes, two adjacent angles can be complementary if their sum is 90 degrees. This is only possible if both angles are acute angles and their sum is 90 degrees.
E.g. 
$$
{ 45 }^{ o }+{ 45 }^{ o }={ 90 }^{ o }\\ { 15 }^{ o }+{ 75 }^{ o }={ 90 }^{ o }
$$
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