Question
Rachel painted a grey square on rectangle FGHJ as shown. The length of GH is twice of KH. The length of FJ is 12 of FG. Find the area of the unpainted part of the rectangle FGHJ.
4 m

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Rachel painted a grey square on rectangle FGHJ as shown. The length of GH is twice of KH. The length of FJ is 12 of FG. Find the area of the unpainted part of the rectangle FGHJ.