The Triangle Sum Theorem states that the sum of the angle measures in any triangle is always 180 degrees. Let's suppose that the missing angle measure is represented by x.
Since we're given b as one of the angles, we can write the equation as follows:
x + 75 + 110 = 180
To find the value of x, we need to isolate it on one side of the equation. Let's first combine like terms:
x + 185 = 180
Next, we'll subtract 185 from both sides of the equation to get rid of the constant:
x + 185 - 185 = 180 - 185
Simplifying further, we get:
x = -5
Therefore, the value of x is -5.