Question

If the volume of a cube is 729 cm3, what is the surface area of the cube?

A) 462 cm2
B) 474 cm2
C) 486 cm2
D) 494cm2

Answer 1

Hey mate ,

a^3 = 729

a= 9cm

This TSA = 6a^2

= 6×9×9

= 486 cm^2. (c)

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Answer 2

Answer:

C

Step-by-step explanation:

x^{3}=729

⇒x=9

⇒Surface area of each side: 9x9 = 81

⇒Surface area of the cube: 81x6 = 486 (it is C)

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