m∠4 = m∠8 = 75
Here, since the two lines are parallel, we want to get the value of m∠8 given the value of m∠4 as 75
Since the two lines are parallel, then;
![m\angle4\text{ = m}\angle8\text{ = 75}](https://img.qammunity.org/2023/formulas/mathematics/college/se8g45v5kbubvv5e3zbold830qm1d0t1ja.png)
The reason for this is that both angles are corresponding to each other and corresponding angles are congruent which make them equal in value