From the question, we are to pick the false statement
Following the properties of Parallelogram, Kite and Rhombus
The diagonals of a parallelogram bisect each other
The diagonals of kite cross at right angles
The diagonals of a rhombus bisect each other at right angles.
But by the properties of Isosceles trapeziod
The diagonals of an isosceles trapeziod are of equal length
Hence the statement
The diagonals of an isosceles trapezoid are of different lengths
Is FALSE