No, they are not.
A similar hexagon
They're similar because they both have six sides, but they're different because a regular hexagon is always the same and is symetrical in six ways, and a normal hexagon is not. (You can look at images on google if you type in normal hexagon and then regular hexagon).
hexagon and pentagon
Yes! All six sides of a hexagon are congruent. It doesn't have to have all sides congruent. A hexagon only needs six sides to be a hexagon.
Yes, a hexagon can be irregular.A regular hexagon has all 6 sides of equal lengths, and all internal angles of 120 degrees.An irregular hexagon is any hexagon that is not regular (all 6 sides are not the same length in an irregular hexagon.)
A hexagon with 6 congruent sides is a regular hexagon
There is o simple answer. 10% of a hexagon could look like a circle in the hexagon, a square in the haxagon, a similar hexagon with sides which are sqrt(0.1) as long, or lots of other shapes.
It is a hexagon whose sides are all the same length. It need not be a regular hexagon.
no
It is not possible to have a hexagon with all right angles.
A regular hexagon is a polygon with six sides where all six angles have the same measurement. (And all six sides have the same length.) If the angles of a hexagon do not all have the same measurement, or if the sides are not all of the same length, then the hexagon is irregular.
It is called a Regular Hexagon.