# Rectangle is divided by four lines, as shown, with 4 resulting triangles & known areas. Find area of grey quadrilateral?

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A rectangle is divided by four lines, as shown, with 4 of the resulting triangles having known areas. Find the area of the quadrilateral that is shaded in grey.

posted May 5, 2017

+1 vote
answer May 21, 2017 by anonymous
+1 vote
answer May 21, 2017 by anonymous

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