The area of the surface of a sphere is described by the formula S = 4r 2

The area of the surface of a sphere is described by the formula S = 4πr ² , where r is the radius of the sphere. The Earth has a radius of 3960 miles and dry landforms approximately 29.2% of the Earth’s surface. What is the area of the dry land on Earth? What is the surface area of the Earth’s water?

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Substitute the value of the radius of the Earth into t... View the full answer