To find \( m∠1 \) given that \( m∠4 = 25° \), it's important to know the relationship between angles \( ∠1 \) and \( ∠4 \).
If \( ∠1 \) and \( ∠4 \) are corresponding angles, alternate interior angles, or any specific relationship (like supplementary or complementary angles), the calculation would depend on that relationship.
For example:
- If they are corresponding angles, then \( m∠1 = m∠4 = 25° \).
- If they are alternate interior angles, then \( m∠1 = m∠4 = 25° \).
- If they are supplementary angles, then \( m∠1 + m∠4 = 180° \), thus \( m∠1 = 180° - 25° = 155° \).
- If they are complementary angles, then \( m∠1 + m∠4 = 90° \), thus \( m∠1 = 90° - 25° = 65° \).
Please provide more context or indicate the relationship between angles 1 and 4 to find \( m∠1 \).