please solve this problem
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Answer is option D ..(AB-CD)/2
Use similar triangles principles.
Midpoint of AD is G. Midpoint of BC is H. GEFH is parallel to AB and CD. As it joins midpoints of sides, in both triangles ABD and ABC.
See picture enclosed.
Use similar triangles principles.
Midpoint of AD is G. Midpoint of BC is H. GEFH is parallel to AB and CD. As it joins midpoints of sides, in both triangles ABD and ABC.
See picture enclosed.
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