Answer:
[tex] \angle \: 3 = 128 \degree[/tex]
Step-by-step explanation:
[tex] \angle \: 3 + 52 \degree = 180 \degree.. (straight \: line \: \angle s) \\ \angle \: 3 = 180 \degree - 52 \degree \\ \huge \red{ \boxed{\angle \: 3 = 128 \degree}} \\ [/tex]
