Question

Calcule a área de um prisma triangular de lados 4 cm, 6 cm e 8 cm e cuja altura mede 2m

Answer 1

$\large\boxed{\begin{array}{l}\underline{\rm C\acute alculo~da~\acute area~da~base~B\!:}\\\sf B=\dfrac{1}{\backslash\!\!\!2}\cdot\backslash\!\!\!4^2\cdot6\\\sf B=12~cm^2\\\underline{\rm C\acute alculo~da~\acute area~lateral~A_l\!:}\\\sf A_l=(4+6+8)\cdot2\\\sf A_l=18\cdot2\\\sf A_l=36~cm^2\\\underline{\boldsymbol{ C\acute a lculo~da~\acute area~total~A_t}}\\\sf A_t=A_l+2\cdot B\\\sf A_t=36+2\cdot12\\\sf A_t=36+24\\\sf A_t=60~cm^2\end{array}}$