Answer:
The answer is B
Explanation:
I could be wrong on this, I hope I'm not and I hope I helped!!
110°
using angle sum property of a quadrilateral,
∠BAD+∠BCD+∠ABC+ADC=360°
LET ∠ABC=X=∠ADC
70+70+X+X= 360°
2X=360°-140°
X=220°/2=110°
∴ m∠ADC =110°
9.5m questions
12.2m answers