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.
We can measure Angles in Degrees. There are 360 degrees in one Full Rotation (one complete circle around). (Angles can also be measured in Radians) (Note: Degrees can also mean Temperature, but here we are talking about Angles) The Degree Symbol: Â°. We use a little circle Â° following the number to mean degrees.