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Each edge of a cubical block of wood measures 2 inches. What is the

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pushpitkc
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Each edge of a cubical block of wood measures 2 inches. What is the [#permalink] New post   31 Oct 2018, 05:12
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Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

(A) 4
(B) 8
(C) 12
(D) 16
(E) 24
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E
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Re: Each edge of a cubical block of wood measures 2 inches. What is the [#permalink] New post   31 Oct 2018, 09:47
pushpitkc wrote:
Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

(A) 4
(B) 8
(C) 12
(D) 16
(E) 24


The shape of "Cubical block of wood" is a CUBE.

A cube has 6 faces(all square shaped) of equal area, where area of any face=\((edge)^2\)

So, surface area of the block=\(6*2^2=24\) sq. inches

Ans. (E)
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Re: Each edge of a cubical block of wood measures 2 inches. What is the [#permalink] New post   02 Nov 2018, 17:07
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pushpitkc wrote:
Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

(A) 4
(B) 8
(C) 12
(D) 16
(E) 24


Each face is 2^2 = 4 square inches, and there are 6 faces on a cube. Thus, the surface area is 6 x 2^2 = 6 x 4 = 24 square inches.

Answer: E
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Re: Each edge of a cubical block of wood measures 2 inches. What is the [#permalink] New post   02 Nov 2018, 19:14
pushpitkc wrote:
Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

(A) 4
(B) 8
(C) 12
(D) 16
(E) 24


Area of one face = 2 * 2 = 4 square inches,
Area of 6 faces = 6 * 4 = 24 square inches

Answer choice: E

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Re: Each edge of a cubical block of wood measures 2 inches. What is the [#permalink]
02 Nov 2018, 19:14
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