the paralleogram ABCD has area 40 cm.it is devided into a rhombus AECF and triangles EBC and AFD.the area of rhombus is six times the area of one triangle.the a
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the paralleogram ABCD has area 40 cm.it is devided into a rhombus AECF and triangles EBC and AFD.the area of rhombus is six times the area of one triangle.the area of rhombus AECF is.......
