no * * * * * Actually, the answer is YES.
Yes. See: http://euler.slu.edu/escher/index.php/Tessellations_by_Polygons#Tessellations_by_Quadrilaterals
yes... this figure does tessellate
No it does not tessellate you have to pentagons in order for it to tessellate. * * * * * It is not at all clear what "have to pentagons" has to do with this. No polygon with 7 or more sides will tessellate. Octagons will tessellate if mixed with squares but that is not "proper" tessellation since it involved more than one shape.
A regular pentagon will not tessellate.
every quadrilateral will tessellate the plane? true or false
No. To tessellate a plane you would also need squares.
Yes, they will all tessellate an infinite plane.
No
No because a regular polygon will only tessellate if its interior angle is a factor of 360 degrees. For example an equilateral triangle will tessellate because its interior angle is 60 degrees which is a factor of 360 degrees.
circles and octagon do not tessellate as they overlap each other or leave spaces between them.
no * * * * * Actually, the answer is YES.
There are decagonal shapes which will tessellate the plane.
Yes
No.
No.
No not normally