Answer:
Take a fixed gap and draw 180 degree arc of equal size on each side.
The compass size should be the same for the whole process, be careful.
Make 90 degrees angle for both side and cross two arcs from each 90 degrees. The point thus obtained should be produced vertically towards the line AB. The point on the line segment is the line bisector.
Answer:
Step-by-step explanation:
Set B = 60 elements
Set A = x elements
A∩B = 12
A∪B = 82
x = (82+12 - 60) = 34 elements
The first letter can be any of 26.
The second letter can be any of the remaining 25.
The third letter can be any of the remaining 24.
26*25*24 = 15,600 passwords are possible
