The formula that would be used to find the measure of angle 1 will be
m<1 =12(a - b)
To get the measure of angle 1, the circle theorem below will be used as shown:
The angle at the vertex of the circle is equal to half of the difference of the intercepted arc.
- Angle at the vertex = m<1
- Angles at the intercepted arc ar m<a and m<b
The formula that would be used to find the measure of angle 1 will be
m<1 =12(a - b)
Learn more on circle theorem here: https://brainly.com/question/1503481
