• I am not teaching Geometry this school year.  However, I have something for you since you have visited this page. 

    1. 

              Using (input any two real numbers)

     

    2.  Proof of Heron formula (area of triangle)

     

    3  Ten different formula to find the area of triangle 
        (I am sure that there will be more formula are waiting for your discovery).

     

          Enjoy.  TRINH

     1

     

    2

     

     

    3

     4 5