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Until now there are at least three alternative methods of constructing lemniscate of Bernoulli. In this paper six alternative methods will be given to construct Lemniscate of Bernoulli in a simple way. Furthermore, at the end of the session will be given how to construct the incircle of Lemniscate of Bernoulli.

This paper discusses the modification of Varignon's theorem on quadrilaterals by dividing the sides of the quadrilateral into three, four, five to become parts. The process of proving it is done in a very simple way, namely by using congruence. The result obtained is that the area of ​​the plane formed from the modification of Varignon's theorem has a relationship with the area of ​​the basic quadrilateral.