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Nancy_Lam
Group Title
Eight cubes,each with an edge of length one inch,are positioned together to create a large cube. What is the difference in the surface area of the large cube and the sum of the surface areas of the small cubes?
A) 24 in^2
B) 16 in^2
C) 12 in^2
D) 8 in^2
E) 0 in^2
 2 years ago
 2 years ago
Nancy_Lam Group Title
Eight cubes,each with an edge of length one inch,are positioned together to create a large cube. What is the difference in the surface area of the large cube and the sum of the surface areas of the small cubes? A) 24 in^2 B) 16 in^2 C) 12 in^2 D) 8 in^2 E) 0 in^2
 2 years ago
 2 years ago

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mathandphysics Group TitleBest ResponseYou've already chosen the best response.3
A cube itself has 6 sides, each with surface area of 1 (L x W which are each 1) So each cube has an area of 6 in^2. 8 cubes, so 48 in^2 In the megacube, each cube only shows 3 of its sides. Therefore, each cube only has 3 in^2 represented. 8 cubes, 3x8 = 24. 48  24 = 24 in^2
 2 years ago

mathandphysics Group TitleBest ResponseYou've already chosen the best response.3
so, A
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
Surface area of large cube = 6*2^2 = 24 square inches Surface area of small cube = 6*1^2 = 6 square inches Sum of small cubes surface area = 6*8 = 48 square inches  So the difference is 48  24 = 24 square inches So the answer is A
 2 years ago

Nancy_Lam Group TitleBest ResponseYou've already chosen the best response.0
small cube = area ? large cube= area?
 2 years ago

mathandphysics Group TitleBest ResponseYou've already chosen the best response.3
The surface area of each small cube is 6 in^2. There is 8 of them. So that's 48 in ^2.
 2 years ago

Ishaan94 Group TitleBest ResponseYou've already chosen the best response.0
Large cube area surface = 24 small is 6
 2 years ago

mathandphysics Group TitleBest ResponseYou've already chosen the best response.3
Surface area of large is 24 in^2
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.0
the surface area of the large cube is 24 square inches the surface of one small cube is 6 square inches
 2 years ago

Nancy_Lam Group TitleBest ResponseYou've already chosen the best response.0
ok, I get now,ty
 2 years ago
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