Answer:
Greg is wrong, because the relation is double, not 4 times.
Explanation:
- The base of the Eiffel Tower covers an area of 328 square feet.
- The base of the Greate Pyramid of Gyza is 756 square feet.
We need to divide these areas to compare.

Therefore, the Great Pyramid of Gyza has a base area double than Eiffel Tower base area, approximately.
So, Greg is wrong, because the relation is double, not 4 times.