Question

The pyramids at Giza include several square-based pyramids that were built in honor of the Egyptian gods. One of these incredible monuments is the Khafre pyramid, built as part of a temple complex, with the famous Sphinx at its base. The base length of this pyramid is seven hundred five feet, and its height is four hundred seventy-one feet. Massive dimensions indeed! Calculate the volume of the Khafre pyramid. Show the steps of your solution and explain your work.
I tried to do it but my teacher said I was wrong.

Answer 1

Isnt it just 7 x Hight 

Answer 2

First step: write the equation for the volume of a pyramid V=(LWH)/3
Second: provide the variables V=(700*700*471)/3
Third: Solve V=7.69 * 10^7 or 76,900,000 feet cubed