Question
Given that AB is longer than DC by 9 m and BC = 52 m. AB is 13 of ZA and the total area of Triangle ZFE and Triangle BFC is 1040 m2. Find the area of the unshaded triangles.
4 m

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Given that AB is longer than DC by 9 m and BC = 52 m. AB is 13 of ZA and the total area of Triangle ZFE and Triangle BFC is 1040 m2. Find the area of the unshaded triangles.