Yes.
A nine sided polygon does not normally tessellate
The angles for congruent shapes and the angles in similar shapes are all the same. All the sides are also proportional in both. Basically, all congruent shapes are similar but not all similar shapes are congruent.
Irregular shapes are all around. Most shapes are irregular.
There are infinitely many shapes and not all of them have names.
All triangles tessellate.
A quadrilateral
No.
No.
Outside Inside Foursided
Yes.
yes it will
Yes.
A rhombus tessellates.
Yes, rectangles will tessellate.
yes
No, we did a maths topic on tessallating quadrilacterals and we proved that not all do! hexagons tessalate and squares also triangles