robertime00 robertime00

18-05-2020
Mathematics

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If the surface area of a cube is 390 sq cm. Which best describes the length of the side of the cube?

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wegnerkolmp2741o wegnerkolmp2741o

18-05-2020

Answer:

sqrt(65) = s

Step-by-step explanation:

The surface area of a cube is found by

SA = 6s^2 where s is the side length

390 = 6 s^2

Divide each side by 6

390/6 = 6s^2 /6

65 = s^2

Take the square root of each side

sqrt(65) = s

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