Question: A banner has a red border and a rectangular white center. The width of the border at the top and the bottom is 6 cm

A banner has a red border and a rectangular white center. The width of the border at the top and the bottom is 6 cm and along the sides it is 3 cm. The total area of the banner is 22050 cm2. What should the dimensions of the banner be if the area of the white center is to be maximized? Give your answers as exact expressions or decimals accurate to at least two places.

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