-I see many squares and rectangles which contribute to the main design of the building. -The windows are all designed as squares inside larger squares. -I see triangles which give the building it's design as well. 3.Ancient architecture often has the best examples of geometry. -This is Stonehenge, a great example of geometry. As you can see, there are many different shapes in Stonehenge. -All the stones are set in a cirular design.
Here's the answer: It took a long time to write the Bible! The Bible was written over about 1,500 years from 1400 BC to AD 90. God wanted different people to write at different points in history so we could see His plan for the world. Second Timothy 3:16 says that God breathed life into the Bible.
To summarize: A generation in the bible is primarily the age of a man when his first male child is born; but secondarily, the age of a man at his death. The bible then rounds the exact span of years in a generation to be 40 and 100 years as the primary usage, but on occasion, 70 years. And 70 is the average of 40 and 100, which allow the three timeframes to work in numeric harmony to produce the numeric symmetry found throughout the bible.