Mathematics

Angles which are both supplementary and vertically opposite are 


ANSWER

$$90^o, 90^o$$


SOLUTION
As we know, vertically opposite angles are equal.
Let the angle be $$y$$
$$\Rightarrow y+y=180^o$$
$$\Rightarrow 2y=180^o$$
$$\Rightarrow y=90^o$$
Therefore, $$90^o$$ is asked angle for each.
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