yes
squares,rectangles,regular pentagons
All pentagons have five sides. When you see a five sided figure you will always know it's a pentagon.
A polygon can be equilateral but not always equiangular. Some examples of this are rhomboids and other polygons like pentagons and hexagons.
Yes, regular hexagons are always similar. A regular hexagon has equal sides and equal angles, specifically each angle measuring 120 degrees. Because all regular hexagons share these properties, they can be scaled versions of one another, maintaining the same shape regardless of size. Therefore, any two regular hexagons are similar.
always
Pentagons do not have to be regular. Elongating one side will skew two angles and make them non congruent with the other three, creating an irregular polygon.
A regular polygon.
No. Two regular hexagons are always similar to each other, but two random hexagons are not necessarily similar.
No, one regular hexagon could be larger than another regular hexagon.
There are always 2 diagonals in any quadrilateral whether or not it is irregular or regular
Regular polygons. A square and rectangle will have congruent (equal length) diagonals.
Yes they are. All ten angles are 54 degrees.