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Two cubes have side lengths of 3 inches and 8 inches. What is the ratio of the surface area of the small cube to the surface area of the large cube? and What is the ratio of their volumes?

 Jun 11, 2019
 #1
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3^2=9

9*6=54

 

8^2=64

64*6=384

 

54:384 

Can you simplify that?

 

3^3=27

8^3=512

27:512

 Jun 11, 2019
 #2
avatar+105879 
+2

Two cubes have side lengths of 3 inches and 8 inches. What is the ratio of the surface area of the small cube to the surface area of the large cube? and What is the ratio of their volumes?

 

sides   3:8

 

so surface area  3^2:8^2     which is 9:64

 

volume is 3^3:8^3         which is      27: 512

 Jun 11, 2019

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