SOLUTION: The surface area of this cube is 21.66 square yards. What is the value of j?

Question 935753: The surface area of this cube is 21.66 square yards. What is the value of j?
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The surface area of this cube is 21.66 square yards. What is the value of j?
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If "j" is an edge, each side has area = j^2
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The surface area is 6j^2
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Equation:
6j^2 = 21.66
j^2 = 3.61
j = sqrt(3.61) = 1.9 yrd
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Cheers,
Stan H.
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The surface area of this cube is 21.66 square yards. What is the value of j?
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j is used in electrical engineering for the sqrt(-1), since i or I is used for current.
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Surface area and sq yds is a puzzle, tho.

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