35.0k views
5 votes
Someone please answer!!

Someone please answer!!-example-1
User Aysel
by
3.0k points

1 Answer

5 votes

Answer:

40°

Explanation:

180-(57+43)=100°

which mean the angle at the top =100°

180-100=80°

x=80/2

x=40

User Andrey Glazkov
by
3.6k points