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square
This is the definition of a "regular" polygon.
Did you try? Kind of obvious, isn't it? 3 sides and there has to be 3 angles, no more, no less.
a decagon has 10 sides and 10 angles -alessandra
A square has 4 equal sides with 4 right angles.
square
An irregular polygon
This is the definition of a "regular" polygon.
Did you try? Kind of obvious, isn't it? 3 sides and there has to be 3 angles, no more, no less.
a decagon has 10 sides and 10 angles -alessandra
A square has 4 equal sides with 4 right angles.
It is a square that has 4 equal sides and 4 right angles.
A polygon can have any kind of angles: acute, right, obtuse and reflex. An angle can have any value in the range (0, 360) degrees excluding 180 degrees.
Obtuse angles.
Rhombus
No. If your finding the area of a polygon, it depends on which kind.
Correct. A square is a rectangle, a special kind that is 'regular'--all its angles are congruent, and all its sides are congruent.