true
Yes, any quadrilateral can be used.
A regular triangle, quadrilateral (i.e., square) and hexagon may be used.
Tear of each 4 corners of the quadrilateral and by joining them together they will form a complete tessellation of 360 degrees with no gaps or overlaps.
square
No it can't
Yes, a quadrilateral can be used to create a pure tessellation if it can tile a plane without any gaps or overlaps. Regular quadrilaterals like squares and rectangles easily tessellate, while irregular quadrilaterals can also form tessellations if their angles and side lengths allow them to fit together properly. The key is that the interior angles of the quadrilaterals must add up to a multiple of 360 degrees at each vertex where they meet.
Triangle :)
Triangle :)
equilateral triangle
Yes, it will.
Yes
Many shapes can form tessalation, but the most easiest is probably a square!