Yes
no
True
Its true just got it wrong
True
Yes
no
True
Its true just got it wrong
True
Yes
As a general rule, no.
Any angle can be bisected using a compass and a straight edge.
No, and the proof was provided by Wantzel in 1837.
Any angle can be bisected using a compass and a straight edge.
Yes. First draw a perpendicular (90 degrees) and then bisect the angle.
A compass and a straightedge
Yes and the trisections will form 4 angles of 22.5