Question

Please explain your answer.... need you help

Answer 1

A) The volume of a pyramid is given by the formula
  V = (1/3)Bh
where B is the area of the base, and h is the height.

The Luxor pyramid has a volume of
  V = (1/3)(360,000 ft²)(350 ft) = 42,000,000 ft³
    = 42,000×(1000 ft³)

The hotel is designed to hold 42,000 people when filled to capacity.


B) The area of a circle is given by
  A = (π/4)d²
where d is the circle's diameter.

Then the diameter can be found from the area as
  d = 2√(A/π)
For the desired base area, the diameter would be
  d = 2√(570,025 ft²/π
  d ≈ 852 ft

The new conical hotel would have a base diameter of about 852 ft.