Answer:
30° and 150°
Explanation:
One angle formed between line a and line c would be 150°, so that would make the angle directly opposite it 150°, too. Because a straight line is 180°, the other angles to these 2 would each be 180°-150°=30°. The same angles would be between line b and line c because line b and line a are parallel and line c is the same. Therefore, the measures of all the angles would be 30° or 150°.