True
True -
no
True
Yes
An angle of 65° can not be trisected using a compass and straight edge.
True
true
True -
no
True
Yes
Constructions that are impossible using only a compass and straightedge include Trisecting an angle Squaring a circle Doubling a cube
As a general rule, no.
Yes
True.
A 10 degree angle cannot be constructed using only a compass and straight edge.