Question

In the adjoing figure lines [ || m and p || q then the
value of (a + b) - (c + d) equals to​

Answer 1

Answer:

In Lll m and p is a transversal line.

so, a+20 +b = 180. (crossponding Ls)

a+b =180-20

a+b =160. ....(I)

and In p ll q and m is a transversal line

a+20= c+d ( attn. int Ls and then vert opp . Ls )...(2)

sub eq..i and ii

a+b -(c+d)= 160-(a+20)

=160-a -20

=140-20