Question

Please solve this fast ​

Answer 1

Answer:   110 °

Step-by-step explanation:

AB = AC = y

Sum of angle of a triangle = 180°

Given angle = 40

=> 40 + y + y = 180

=> y = 180 - 40 / 2  = 70 °

now, angle ACB = 70

=> ACD = 180 - 70 = 110

Answer 2

$answer$

AB=AC(Given)

so angle ABC=angle ACB

let each as (y)

so y+y+40°=180° ( by ASPT)

2Y=140

Y=70° ------------(1)

and. x+y=180( exterior angle property)

x+70=180

x=110°