Answer:
a = 26°
Explanation:
a and 154° are adjacent angles on a straight line and sum to 180°, so
a + 154° = 180° ( subtract 154° from both sides )
26
angle a and 154° both are supplementary. You see the straight line? Yes, once you combine 154° and a, you will get the straight line or straight angle which is 180°.
Therefore:-
154+a=180
a=180-154
a=26
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