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[tex]\Large\boxed{\begin{array}{l}\sf sendo~a~e~b~dois~lados~de~um~tri\hat angulo~e~\theta\\\sf um~\hat angulo~entre~a~e~b\\\sf a~\acute area~\acute e~dada~por\\\sf A=\dfrac{1}{2}\cdot a\cdot b\cdot sen(\theta)\end{array}}[/tex]
[tex]\large\boxed{\begin{array}{l}\sf A=\dfrac{1}{2}\cdot 6\cdot3\cdot sen(30^\circ)\\\sf A=\dfrac{1}{\diagup\!\!\!2}\cdot\diagup\!\!\!\!6^3\cdot3\cdot\dfrac{1}{2}\\\sf A=\dfrac{9}{2}\\\sf A=4,5~u\cdot a\end{array}}[/tex]
