Question

This is the question.​

Answer 1

Answer:

you have to find exterior angles by linear pair method and then add the exterior angles and subtract from 360. you will get x

Step-by-step explanation:

Answer 2

Answer:

It is 21 : 5

Step-by-step explanation:

As L || M || N, And AC,BD,EF,CF are all transversals passing through l, m and n.

Angle CAB and Angle ACD are co interior angles.

So, Angle CAB + Angle ACD = 180

100+x=180

x=80

Angle F is on a straight line

Therefore , 180 = Angle CFE + Angle CF + Angle EF

180 = 20+30+y

180 = 50+y

y = 130

The ratio is:

(y+x):(y-x)

(130+80):(130-80)

210:50

21:5

I hope this helps you