The moon's diameter is 2,159 miles. What is the surface area of the moon? Round to the nearest mile.

Discussion in 'Calculator Requests' started by math_celebrity, May 25, 2021.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    The moon's diameter is 2,159 miles. What is the surface area of the moon? Round to the nearest mile.

    The moon is a sphere. So our Surface Area formula is:
    S =4pir^2

    If diameter is 2,159, then radius is 2,159/2 = 1079.5. Plug this into the Surface Area of a sphere formula:
    S = 4 * pi * 1079.5^2
    S = 4 * pi *1165320.25
    S = 4661281 pi
    S = 14,643,846.15 square miles
     

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