PLEASE HELP ASAP WILL MARK BRAINLEIST

Answer:
The missing angle is 160° .
Step-by-step explanation:
Coz a straight line has 180°.
∆DBC = 90°+70° = 160°
substract it from 180°, cause a triangle has 180°
You'll get 20°
Now Substract it from 180° which is a angle of straight line.
you'll get 160°
Which is your answer dear.
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