KcetMatrices And DeterminantsKCET 2026MCQ+1 / -02026The area of the triangle with vertices $(3, 8), (-4, 2)$ and $(5, 1)$ is $\dfrac{P}{4}$, then the value of $P$ isA$\dfrac{61}{2}$B$\dfrac{2}{61}$C$122$D$\dfrac{1}{122}$Check AnswerClear SelectionReveal AnswerShow Explanation
