Question

Please answer this question.

Answer 1

let angle abc and DCB 2 years and 2 respectively 70 degree + 2 X + 2 is equal to 180 degree 2 into X + Y + 70 degree equal to 180 degree 2 into X + Y equal to 110 degree X + Y equal to 55 degree in triangle abc angle b + Angle B and a c o b + BC + angle b is equal to 180 degree 55 degree + angle equal to 180 degree angle equal to 125 degree