Question
The figure, not drawn to scale, is made up of 3 identical small squares within a larger square of length 20 cm. The perimeter of the unshaded portion of the figure is 64 cm. What is the area of the shaded portion of the figure?
4 m

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The figure, not drawn to scale, is made up of 3 identical small squares within a larger square of length 20 cm. The perimeter of the unshaded portion of the figure is 64 cm. What is the area of the shaded portion of the figure?