Answer:
According to a research led by Mark Lehner, the construction of the Great Sphinx would have taken approximately 3 years to finish with 100 workers steadfast on the job. The whole statue was made from a single rock of limestone. The estimates show that the tools used by the workers were copper chisels and hammers.
Most scholars date the Great Sphinx to the 4th dynasty and affix ownership to Khafre. However, some believe that it was built by Khafre's older brother Redjedef (Djedefre) to commemorate their father, Khufu, whose pyramid at Giza is known as the Great Pyramid.
What was the Sphinx? The original purpose of the Sphinx is unknown. It may have been built to symbolically guard over the Giza plateau, and it may have been a portrait of Pharaoh Khafre. It's face seems to bear a resemblance to Khafre's, and the royal headdress that it wears is particular to pharaohs.
In 1378 CE, Egyptian peasants made offerings to the Great Sphinx in the hope of controlling the flood cycle, which would result in a successful harvest. Outraged by this blatant show of devotion, Sa'im al-Dahr destroyed the nose and was later executed for vandalism.
Step-by-step explanation: