How to create tessellations (instructions)

Tessellations created of triangles and squares.
I Making tessellations of triangles using a vector.
II A tessellation made of squares
III Making a tessellation using a center point and a pivot.
Instruction 2. Tessellation (a mosaic surface of a repeating shape)
Making a tessellation using center point and rotation.
II Making shapes using an equilateral triangle and rotations around a point