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Surface Area and Volume

Surface Area and Volume

Example 1

Are the solids similar, congruent, or neither?

Example 2

Are the solids similar, congruent, or neither?

Example 3

You're making a Styrofoam scale model of the earth for your astronomy class. It's going to be totally far-out. If the diameter of the earth is 7913 miles and you want your model to be one hundred million times smaller, what would be the radius, surface area, and volume of your model? There are 63,360 inches in a mile.

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