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.
How many degrees does a square add up to? How many degrees make up a square or rectangle? 360 o 360 degrees is a great answer if you not paying attention. However, if you look at a square or rectangle you will see that there are four connected line segments. A â¦line segment is 180 degrees. Multiply that by 4 you get 720 degrees. Then if you add the 4 right angles you will have 1080 degrees.