Identify the false statement given below:
1
If the quadrilateral is cyclic, then the product of two diagonals is equal to the sum of the products of the opposite side lengths.
2
Ceva's theorem is concerned with concurrency of the lines.
3
Menelau's theorem is concerned with the collinearity of the points.
4
Menelau's theorem is a not dual version of Ceva's theorem.