• Matéria: Matemática
  • Autor: zikadobaile69
  • Perguntado 7 anos atrás

Calcule a área do triângulo de vértices A (4 , 0), B (0 , 0) e C (0 , 6)​

Respostas

respondido por: CyberKirito
25

 \huge \: A=\begin{vmatrix}4&0&1\\0&0&1\\0&6&1\end{vmatrix}

 \mathsf{det~A=4(0-6)=-24}

 \mathsf{S_{\triangle}=\dfrac{1}{2}.|det~A|}

 \mathsf{S_{\triangle}=\dfrac{1}{2}.|-24|}

 \mathsf{S_{\triangle}=\dfrac{1}{2}.24}

\huge\boxed{\boxed{\mathsf{S_{\triangle}=12~u.a}}}


gustavofach3: S delta = 1
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