Mathematics

Which of the following is obtuse angle?


ANSWER

One and half right angles


SOLUTION
Right angle $$=90^{\circ}$$
One and half right angle $$=\dfrac { { 90 }^{ \circ  } }{ 2 } +{ 90 }^{ \circ  }={ 135 }^{ \circ  }$$
which is greater than $$90^{\circ}$$
So it is an obtuse angle .
Option $$B$$ is correct.
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Single Correct Medium Published on 09th 09, 2020
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