Question

Find the value of x
Given that ab = dc

Answer 1

$\huge\mathtt\pink{A}\mathtt\red{N}\mathtt\blue{S}\mathtt\green{W}\mathtt\purple{E}\mathtt\green{R} \: 40°$

Step-by-step explanation:

Construct a triangle XBC congruent to ABC and jo.in it with ABC. Join A and X

Now accoridng to theorem Angle ACX is half of angle ADX

Now the triangle AXC is isosceles and triangle AXD is too isosceles

Hence

2X= 40°x2

x=40°

#together we go far

#be brainly