Asked by Phillip
                The diameter of the Moon is 3480km. What is the volume of the Moon? How many Moons would be needed to create a volume equal to the Earth? 
How do you find the volume of the Moon from just the diameter? Also, does anybody know how to figure out the volume of the Earth?
            
        How do you find the volume of the Moon from just the diameter? Also, does anybody know how to figure out the volume of the Earth?
Answers
                    Answered by
            Ms. Sue
            
    http://www.wikihow.com/Calculate-the-Volume-of-a-Sphere
    
                    Answered by
            MathMate
            
    The diameter of the eath according to Google is 12,756.2 km.
We assume both the earth and the moon have a shape close enough to a sphere, therefore we use the formula formula for the volume of a sphere as suggested by Ms Sue.
Volume of the moon
= (4/3)πr³
= (4/3)π(3480/2)³
= 2.206*10<sup>10</sup> km³
The volume of the earth can be calculated similarly using diameter = 12,756.2 km (reference Google).
    
We assume both the earth and the moon have a shape close enough to a sphere, therefore we use the formula formula for the volume of a sphere as suggested by Ms Sue.
Volume of the moon
= (4/3)πr³
= (4/3)π(3480/2)³
= 2.206*10<sup>10</sup> km³
The volume of the earth can be calculated similarly using diameter = 12,756.2 km (reference Google).
                    Answered by
            drwls
            
    The earth's diameter is 3.67 times that of the moon. Since volume is proportional to diameter cubed, the earth's volume is (3.67)^3 = 49 times larger.
    
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