Question

Let ABCD be convex quadrilateral. Points E and F are midpoints of sides AB and CD, respectively. Point G is the intersection of lines AF and DE, and point H the intersection of lines BF and CE, respectively. Prove the area of quadrilateral EFGH is equal to the sums of triangles ∆AGD and ∆BHC. Sketch the problem and explain your solving process.​

Answer 1

5577766655444455556677999098765543221 is the ans