SOLUTION: a cube has a surface area of 400 sq. inches, what is the surface area of a similar cube with a scale factor of 3?
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Question 819757: a cube has a surface area of 400 sq. inches, what is the surface area of a similar cube with a scale factor of 3?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
ai = 6xy
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aj = 6(3x3y)
aj = 6(9xy)
aj = (9)6xy
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aj/ai = (9)6xy / 6xy
aj/ai = 9
aj = 9(ai)
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aj = 9(400)
aj = 3600
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3600 sq.in
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