Respuesta :

BeautyQueen97

Answer:

The answer is B

Step-by-step explanation:

I could be wrong on this, I hope I'm not and I hope I helped!!

lambuhere

Answer:

110°

Step-by-step explanation:

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°

Otras preguntas