Given: Two angles form a linear pair. One angle is 22 degrees more than the other.
Required: Measure of the smaller angle.
Explanation:
Let x be smaller angle.
The second angle is 22 degrees more, so second angle is (x+22)
Since they form a linear pair, so their sum is 180 degrees

Solving further

So the smaller angle is 79 degrees.
Final Answer: Option D is correct answer.