hhshedhh hhshedhh
  • 18-02-2020
  • Mathematics
contestada

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

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andybiersack154
andybiersack154 andybiersack154
  • 18-02-2020
The correct answer is 486cm^3
Answer Link
ekwuemegeorge ekwuemegeorge
  • 18-02-2020

Answer:

486

Step-by-step explanation:

Volume of Cube = a^3

Surface area of Cube= 6a^2

Given that the Volume of the cube is equals 729cm^3,  a^3 = 729cm3

Taking the cube roots of both sides, we have

(a3)^1/3 = cube root of (729)

a = 9.

Similarly, Surafce area of cube is 6a^2, but a =9.

Therefore, Surface area = 6(9)^2 = 486cm2

Answer Link

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