Let ABCD be a square. E and F be points on AC such that AE = EF = FC =AC/3. Then tan (ÐEBF) equals :
ABCD is a trapezium with AB∥DC. E and F are points on non-parallel sides AD and BC respectively such that EF∥AB. Show that AEED=BFFC.
In quadrilateral ABCD, diagonals AC and BD intersect at point E. Such that AE : EC = BE : ED. Then, ABCD is a parallelogram.