Answer:
Angle B is 120°
Step-by-step explanation:
Since it's a supplementary angle (angles that add up to 180°) on top of the triangle, you would find ∠B by subtracting 180 by 60 and ∠B will be 120°. Hope this helps:)
Step-by-step explanation:
1) c
2) c
use the value of slope and the coordinates and substitute in the equation of line.