Answer:
145
Step-by-step explanation:
So lets recall what a supplementary angle is. A suppelemenatry angle is two angles that make up 180 degrees.(half circle)
This is different from a complenenary angle with is two angles that make up 90 degrees(quarter circle)
Ok, so we can write the equation for the supplementary angle as:
35+b=180
Lets subtract the angle we knwo from both sides:
b=145
Now we know that B(second angle) must be equal to 145 degrees.
Hope this helps!
