The Pyramid of Khufu in Giza, Egypt was the world's tallest free-standing structure for more than 3,500
years. Its original height was about 144 meters. Its
base is approximately a square with a side length of
231 meters.
The diagram shows a cross section created by dilating
the base using the top of the pyramid as a center. The
cross section has side length of 154 meters.
What is the height of the cross section?