115k views
1 vote
I need help ASAP pls

I need help ASAP pls-example-1

1 Answer

2 votes

Answer:

m< B = 120°

Step-by-step explanation:

The sum of the angles of a trapezoids 360°

m<c=m<D= 60°

60°+60°+2x=360°

120°+2x=360°

2x=360°–120°

2x=240°

x=240/2

x=120°

So : m<B =120°

User Aaronsnoswell
by
5.0k points