Question
Given that DE is longer than GF by 11 m and EF = 40 m. DE is 12 of CD and the total area of Triangle CJH and Triangle EJF is 1140 m2. Find the area of the unshaded triangles.
4 m

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Given that DE is longer than GF by 11 m and EF = 40 m. DE is 12 of CD and the total area of Triangle CJH and Triangle EJF is 1140 m2. Find the area of the unshaded triangles.