A regular polygon must have all sides (and angle) equal.An irregular polygon does not have to have all sides equal, but some may be equal.An irregular hexagon may have 2, 3, 4 or 5 equal sides.
It could be an irregular polygon with 6 or more sides.
It is impossible to create a 2D shape using only 2 straight lines. The smallest polygon has 3 sides - a triangle.
A rhombus or a parallelogram
It is an isosceles triangle that has two equal sides
A 3 sided polygon with 2 equal sides is an isosceles triangle
A 3 sided polygon with 2 equal sides is an isosceles triangle
The minimum number of sides for a polygon is 3 sides.
An isosceles triangle
Triangel
An Isosceles triangle.
A polygon is any 2-dimensional shape with straight sides. Such a shape with sides of equal length would be called an equilateral polygon. If it is also convex (all the angles face the same way), then it would be called a regular polygon.
An isoceles triangle has only 2 equal sides and angles. An equilateral triangle has three of each. Any regular polygon has at least 2 equal sides and angles.
An isosceles triangle is not a regular polygon because it has only 2 equal sides but an equilateral triangle is a regular polygon because it has 3 equal sides and 3 equal angles.
A regular polygon must have all sides (and angle) equal.An irregular polygon does not have to have all sides equal, but some may be equal.An irregular hexagon may have 2, 3, 4 or 5 equal sides.
A regular polygon is one which has all equal sides. But in an isosceles triangle, only 2 sides are equal. The third side has a different measure.Thus an isosceles acute triangle is not a regular polygon.
Umm ... Jekyll and Hyde and a piece of plain paper?or ... perhaps a trapezoid (only two sides are equal)or ... any old 4-sided polygon with only 2 equal sides!