Math, asked by TanishaSharma123, 5 months ago

A(2,1) , B(5,3) and C (-1,3) are vertices of a triangle ABC . find equation of median AD​

Answers

Answered by MaheswariS
2

\textbf{Given:}

\textsf{Vertices of triangle ABC are}

\mathsf{A(2,1),\;B(5,3),\;C(-1,3)}

\textbf{To find:}

\textsf{Equation of median AD}

\textbf{Solution:}

\textsf{Consider,}

\textsf{Midpoint of BC}

\mathsf{D=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)}

\mathsf{D=\left(\dfrac{5+(-1)}{2},\dfrac{3+3}{2}\right)}

\mathsf{D=\left(\dfrac{4}{2},\dfrac{6}{2}\right)}

\mathsf{D=(2,3)}

\textsf{The equation of AD is}

\mathsf{\dfrac{y-y_1}{y_2-y_1}=\dfrac{x-x_1}{x_2-x_1}}

\mathsf{\dfrac{y-1}{3-1}=\dfrac{x-2}{2-2}}

\mathsf{\dfrac{y-1}{2}=\dfrac{x-2}{0}}

\implies\mathsf{x-2=0}

\therefore\textsf{The equation of median AD is x-2=0}

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