The diagram above shows a semicircle with \(A,B,C,D,E,F\) and \(G\) are on its circumference with \(\widehat{AB}=\widehat{BC}=\widehat{CD}=\widehat{DE}=\widehat{EF}=\widehat{FG} \). Find the area of the red filled area, given that the area of the semicircle is \(60\text{ cm}^2\).

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