Question

The volume of a cube is 64 cm3, then its surface area is (a) 16 cm2 (b) 64 cm2 (c) 96 cm2 Q6. (d) 128 cm​

Answer 1

Step-by-step explanation:

D}. 128

64 + 64

=128 cm

The answer is 128 cm

I hope it may help to you

Answer 2

Given

• Volume of a cube = 64 cm³.

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To find

• Surface area of the cube.

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Solution

• Let the 'a' be the side of the cube.

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$\large{\boxed{\boxed{\bf{Volume_{(Cube)} = a^3}}}}$

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$\tt\longmapsto{a^3 = 64}$

$\tt\longmapsto{a = \sqrt[3]{64}}$

$\tt\longmapsto{a = 4}$

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• We have the side of cube is 4cm.

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$\: \: \: \: \: \: \: \: \: \underline{\sf{\red{Finding\: surface\: area}}}$

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$\large{\boxed{\boxed{\bf{Surface\: area_{(Cube)} = 6a^2}}}}$

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$\tt\longrightarrow{Surface\: area = 6 \times(4)^2}$

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$\tt\longrightarrow{Surface\: area = 6 \times 16}$

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$\tt\longrightarrow{Surface\: area = 96}$

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Therefore, surface area of the cube is 96 cm².

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Hence,

• Option (c) is correct.

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