To determine the measure of angle \( m∠4 \), we need more context about the relationship between the angles. Angles are often related in geometry through various properties, such as supplementary angles (which add up to 180°), complementary angles (which add up to 90°), or angles that are vertical or corresponding in parallel lines cut by a transversal.
If you could specify how angle 2 is related to angle 4 (for example, if they are supplementary, vertical angles, etc.), I would be able to help you find \( m∠4 \).