Question

6) Find the measure of ZBEC
A) 10°
B) 60
C) 80°
D) 100

Answer 1

1. analyze data presented

It is not d because it is not greater than 80 degrees

it is not a because it is clearly not 10 degrees

making system of equations

8x+(4x+60)=180

addition

12x+60=180

move sixty to the other side

12x=120

division

x=10

Angle BEC=*x, so 8x=80

Answer: 80 degrees