Join our WikiEducator discussion group or Register now for free skills training.

Area of a triangle given its vertices

From WikiEducator

Jump to: navigation, search


Name

Area of a triangle given its vertices
Graph Formulas
\text{Area of }\Delta ABC\,


= \frac{-y_{2}x_{3}+y_{1}x_{3}-y_{3}x_{1}+y_{2}x_{1}-y_{1}x_{2}+y_{3}x_{2}}{2}




\text{In form of determinant: }\,


\text{Area of }\Delta ABC=\begin{vmatrix}
  x_{1}& y_{1}& 1 \\
  x_{2}& y_{2}& 1 \\
  x_{3}& y_{3}& 1
\end{vmatrix}



Usage

  • Write here usage for the table


See Also

  • List here internal links


Web Resources

  • Write here links for external references