Question

please guys explain properly step by step​

Answer 1

Answer:

Step-by-step explanation:

a = 130° ( vertically opposite angle )

b = 150° ( vertically opposite angle )

c  = 150° ( alternate interior angle )

d = 130° ( alternate interior angle )

Answer 2

Answer:

a=130° ( vertical opposite angle)

b=150° (vertical opposite angle)

d=a ( corresponding angle)

=130°

<BAD =180°-d

=180°-130° =50°

<BCD=180°-b

=180°-150°=30°

c=360°-(<BAD+<ABC+<BCD)

=360°-(50°+130°+30°)

=360°-210°

=150°