A rhombus
There is no specific name for a polygon in which all the angles are different or where the sides are all different.
triangel
Hexagon.
All obtuse angles is impossible- the sides wouldn't connect. If it has one (the most it could have), it is classified as obtuse _______ (name of polygon ex. triangle, hexagon, etc)
A rhombus
Rhombus
It is a Rectangle
It is an irregular polygon
square?
An irregular polygon.
There is no specific name for a polygon in which all the angles are different or where the sides are all different.
triangel
A polygon that has congruent sides and congruent angles is called a Regular polygon. If the number of sides is given, you can be more specific. Some examples: 3 congruent sides/angles = equilateral triangle 4 congruent sides/angles = square 5 congruent sides/angles = regular pentagon 6 congruent sides/angles = regular hexagon ...and so on, by adding "regular" in front of the shape's name.
That is called a regular polygon.
Decagon.
An irregular polygon.