Question

In the given fig PQ || RS,

Answer 1

mark b as angle y

x+y=100 (exterior angle property)

mark c as angle z

180-100=z

z=80 degree

like A is 180

70+x+w =180 degree

180-70=x+w

110=x+w

110/2=55 degree

x=55 degree

triangle is equal to 180 degree

Answer 2

Answer:

30 degrees

Is it correct