Unique Area of Triangle Formula

[mathdad]

I think the following formula is so cool.

View attachment 7498

 

[castor28]

Yes, it is correct. The proof involves some linear algebra, and, in particular, determinants. What is your background in that topic ?

 

[mathdad]

Yes, it is correct. The proof involves some linear algebra, and, in particular, determinants. What is your background in that topic ?

My math background is not deep enough to understand linear algebra, much less proof at that level. This formula is so useful and cool.