Written records of the history of China date from as early as 1500 BC, from the Shang dynasty (c. 1600â1046 BC). Ancient historical texts such as the Records of the Grand Historian (c. 100 BC) and the Bamboo Annals (296 BC) describe a Xia dynasty (c. 2070â1600 BC) before the Shang, but no writing on a durable medium have survived.
A square is a quadrilateral so it has 360 degrees. A square is a quadrilateral so it has 360 degrees.
Well, any shape that has four sides is a quadrilateral. When all four angles are 90 degrees, you can either form a rectangle or a square. In the case of the square, all sides must be congruent, as opposed to the rectangle which must have 2 sides equal but not all 4. Hope this helps.