No. They must have at least three sides of equal length, and all angles must be of equal measure.
Any regular polygon with an even number of sides must have parallel sides.
Yes, regular polygons will have all sides equal length, and all angles the same. If two polygons of the same number of sides are 'regular' then those two polygons will be similar (they may be scaled, for example).
For regular polygons: 3, 4, or 6. For irregular polygons, figures with any number of sides can be found.
Most regular polygons will not - by themselves. In fact, of the regular polygons, only a triangle, square and hexagon will. No other regular polygon will create a regular tessellation. However, for polygons with any number of sides, there are irregular versions that can tessellate.
Regular polygons whose number of sides are not even will not have any parallel sides, e.g. triangle, pentagon, heptagon.Irregular polygons of any number of sides may have no parallel sides (e.g. an irregular quadrilateral, known in the US as a trapezium).
Yes. A polygon can have any number of sides over 2. There are regular polygons with any number of sides more than 2 as well. For example, stop signs are shaped as a regular octagon, a regular 8-sided polygon.
That could be numerous polygons: a square, a regular hexagon, a regular octagon, a regular dodecagon ... Any regular polygon with an even number of sides could be your answer.
Any two polygons with a different number of sides are not similar.
-- All regular (equilateral) triangles are similar. -- All squares are similar. -- All pentagons are similar. -- All hexagons are similar. . . . etc. Any regular polygon is similar to all other regular polygons with the same number of sides.
Any regular shapes have equal sides, including squares and equilateral triangles. Irregular shapes can also have equal sides, but not equal angles.
Any regular polygon with an even number of sides.
Yes, a regular polygon has all sides of equal length. An irregular polygon is any polygon that is not regular.