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Answer:
Step-by-step explanation:
Here the given data are ;
m ║n , m∠ 1 = 65° , m∠2 = 60°
And BD bisects ∠ABC .
So first calculating the value of ∠ ABD = 180° - 65° - 60° = 55°
∵ BD bisects ∠ABC ,
So ∠DBC = 55°
Now , ∠ BRA = 180° - 55° - 55° = 70°
Since the line m and n are parallel ,
m∠6 = ∠BRA = 70°
HENCE PROVED.
I am attaching an image of diagram to better understand my solution.
