NO
All congruent figures are similar figures, and have identical sizes.
An hexagon
NO, there not
no
Hexagonal Prism
Suboxone
Congruent figures are similar - in sides as well as angles. Corresonding angles of similar figures congruent but their sides are not. The sides are all in some fixed ratio. [If that ratio is 1, the figures are congruent.]
Congruent figures are always similar. However, similar figures are only sometimes congruent.
Yes, but they are more than similar - they are congruent.
If all angles of two polygons are the same the figures are similar (irrespective of rotation).
No. There are some figures that don't have a name that are five sided.
No. Two figures are similar if they have same shape, and all the angles are equal; but they can have the sides of different sizes. I mean, similar figures may have different sizes, but must have the same shape.