Answer:
35°
Step-by-step explanation:
If 2 angles are supplementary, that means they add up to 180 :
Now we make an equation and solve for x :
(4x+9) + (x+1) = 180
5x+10 = 180
5x = 170
x = 34
Now we find the measure of the smaller angle using our value of x :
x+1 = 34 +1
x+1 = 35
Hope this helped and have a good day
