" E and "F" lie on diagonal "AC" of a parallelogram "ABCD" such that "AB" - "

Point E and F lie on diagonals AC of a parallelogram ABCD such that AE=CF What type of quadrilateral is BFDE?

E and F are points on diagonals AC of a parallelogram ABCD such that AE=CF. show that BFC parallelogram

E and F are points on diagonal AC of a parallelogram ABCD such that AE=CF. Show that BFDE is a parallelogram.

E and F are points on diagonal AC of a parallelogram ABCD such that AE=CF. Show that BFDE is a parallelogram.

Two points X and Y lie on the diagonal BD of a parallelogram ABCD such that DX = BY. Prove that squareAXCY is a parallelogram.

Two points X and Y lie on the diagonal BD of a parallelogram ABCD such that DX = BT. Prove that squareAXCY is a parallelogram.

Points M and N are taken on the diagonal AC of a parallelogram ABCD such that AM= CN. Prove that BMDN is a parallelogram.

Diagonal AC of a parallelogram ABCD bisects A. Show that ABCD is a rhombus.

Diagonal AC of a parallelogram ABCD bisects A. Show that it bisects C also

bar(AC) " and " bar(BD) are the diagonals of the parallelogram ABCD. Prove that, vec(AC)+vec(BD)=2vec(BC) " and " vec(AC)-vec(BD)=2vec(AB)