Respuesta :

Answer:

114

Step-by-step explanation:

The measure of angle 8 should be 114 degrees

Calculation of the measure of angle 8:

Since  lines a and b are parallel and that m angle 3= 66 degrees

We know that the sum of two angles should be 180 degrees

So, the measure of angle 8 should be

= 180 - 66

= 114 degrees

hence, The measure of angle 8 should be 114 degrees

Learn more about an angle here: https://brainly.com/question/17688754