yall get on my nerves
All polygons can be irregular sense the requirements for a polygon to be irregular is for 1 or more sides to be unequal to the others. So a pentagon is sometimes a regular polygon. Hope that answers your question.
Shapes do not always have lines of symmetry. For example, if you have an irregular shape, it will not have a line of symmetry. I am quite certain though that all geometric shapes have a line of symmetry.
always true
For regular polygons, all the interior angles are the same measure, while the sum of the exterior angles is always 360 for any regular polygon. Use these facts and the fact that each interior/exterior angle pair has a sum of 180 to answer this question. 360 divided by 8 = 45. So each exterior angle of the figure measures 45. 180 - 45 = 135, so each interior angle measures 135 degrees.
a tautology is a statement that is always true. For example p or not p is always true because one of the two is always true.
Regular polygons.
A regular polygon is always equiangular.
no.
Equiangular (not eqiangular) polygons are equiangular. These can be, but need not be, regular polygons.
A square, pentagon, decagon, octagon are always regular polygons.
yae they always do:)
Regular polygons. A square and rectangle will have congruent (equal length) diagonals.
Circles and all regular polygons.
Regular polygons are always convex by definition.
squares,rectangles,regular pentagons
Not all polygons are regular by definition. An irregular polygon may have non-congruent sides or non congruent angles or both. A regular polygon will always have both congruent sides and angles.
Not always - the only regular quadrilateral is a square and not all four-sided polygons are square.