The area of a cube varies directly as the square of the length of a side. A cube has an area of 168.54^(2) when the lenght of a side is 5.3 What will the area be when the length of a side is 10.2?

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A=k*l^2, where k is a ocnstsnt Find the constant first 168.54^2=K*(5.3)^2 Then to find the area A, use the formula A=k*l^2, you know k, l . plug in and solve