in the given figure, DE // BC and MF// AB, FIND : 1. angle ADE + angle MEN 2. angle BDE 3. angle BLE

As BLDE and BDLESo, BLED is a gm .DBL=DEL=40°    Opposite angles of parallelogramMEN=DEL=40°   Vertically Opposite anglesDBL=ADE=40°    Corresponding AnglesADE+MEN=40°+40°ADE+MEN=80°DBL+BDE=180°    Interior angles on same side of transversal of parallel lines40°+BDE=180°BDE=140°BDE=BLE=140°    Opposite angles of parallelogram

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