Answer:
Step-by-step explanation:
Angle 5 can be determined in different ways.
The first would be
Since angle 1 is 140 degrees, angle 3 will be 180 degrees - 140 degrees = 40 degrees. This is because the sum of angles on a straight line is 180 degrees.
Angle 3 and angle 6 are alternate angles, thus they are equal. Therefore, angle 6 is 40 degrees
Again, angle 5 and angle 6 are on a straight line. It means that angle 5 would be 180 - 40 = 140 degrees.
So angle 5 is 140 degrees.
The other method is rather shorter. Angle 1 and angle 5 are corresponding angles. It means that they are equal. Therefore, angle 5 is 140 degrees
