Question

find the unknown angle in the following figure ​

Answer 1

Step-by-step explanation:

If DA is parallel to BC , then,

sum of adjacent angles= 180

i.e. <DAC +< ACB=180

=> 3x +55 + 2x= 180

=>5x = 180-55

=>X= 125/5

=> x = 25

Therefore, angle ACB = 2*25=50

angle DAC =3*25+55=130