Final Answer:
The following statements are true of the Great Pyramid of Khufu:
1. It was originally covered in smooth limestone.
2. It is built from roughly 2.3 million stones.
3. The greatest difference in length of the four sides at the base is only 3.4 yards.
Explanation:
1. It was originally covered in smooth limestone: This is true; the Great Pyramid of Khufu was originally covered in casing stones made of smooth, white Tura limestone, which gave it a polished appearance.
2. It is built from roughly 2.3 million stones: This is accurate; estimates suggest that the Great Pyramid is constructed from around 2.3 million limestone blocks, each weighing several tons.
3. The greatest difference in length of the four sides at the base is only 3.4 yards: True; despite its massive size, the Great Pyramid has very precise measurements, with the greatest difference in length between any two sides at the base being only about 3.4 yards, indicating its remarkable architectural precision.
