In the diagram lines man’s n are parallel. If m<3=150

Without a visual representation or a clearer explanation of the problem, it is difficult to provide an accurate answer. Please provide more information or a diagram to help clarify the problem.

To provide a step-by-step explanation, I would need more information about the diagram you mentioned. Specifically, I need to understand the relationship between lines man's n and angle 3.

Please provide additional information or a description of the diagram so I can better assist you.