Fill in the blanks so as to make the following statements true:If the sum of two adjacent angles is 180°, then the _____________ arms of the two angles are opposite rays.
To do:
We have to fill in the given blank.
Solution:
If the sum of two adjacent angles is $180^o$, then two angles are formed with one ray as common to both the angles.
Therefore,
If the sum of two adjacent angles is $180^o$, then the uncommon arms of the two angles are opposite rays.
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