## What is the Slope Angle of the Great Pyramid of Egypt?

The Great Pyramid of Egypt, also known as the Pyramid of Khufu or the Pyramid of Cheops, is one of the most iconic structures in the world. It is believed to have been built around 2560 BC and is considered one of the Seven Wonders of the Ancient World. The pyramid stands at an impressive height of 146 meters (481 feet) and has a base length of 230 meters (755 feet). One of its most notable features is its slope angle, which is 51 degrees and 51 minutes.

### How Was the Slope Angle Determined?

The exact slope angle of the Great Pyramid was determined by a team of French scientists in 1867. Using a combination of trigonometry and surveying techniques, they were able to calculate that the pyramid had a slope angle of 51 degrees and 51 minutes. This angle was then used as a reference point for other pyramids in Egypt.

### Why Is This Slope Angle Important?

The slope angle of the Great Pyramid is important because it provides insight into how it was constructed. The precise angle suggests that it was built using advanced engineering techniques, which would have been necessary to achieve such accuracy. Additionally, this angle has been used as a reference point for other pyramids in Egypt, allowing archaeologists to better understand their construction methods.