SOLUTION: an earth model has a radius of 24 inches. Since roughly 75% of earths surface is covered by water, he wanted to paint 75%of his model blue. Approximately how many square inches on
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Question 438378: an earth model has a radius of 24 inches. Since roughly 75% of earths surface is covered by water, he wanted to paint 75%of his model blue. Approximately how many square inches on his model will be painted blue
Answer by htmentor(1343) (Show Source): You can put this solution on YOUR website!
The surface area of a sphere = A =
Given: r = 24 in.
75%, or 3/4 of the surface area A is to be painted blue:
3/4A = = 5428.67 sq. in.
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