Question

Considere um cilindro de altura 6cm cujo diâmetro da base mede 8m determine sua área total e volume

Answer 1

$\boxed{\begin{array}{l}\sf r=\dfrac{8}{2}=4~m\\\sf A_{total}=2\pi r(r+h)\\\sf A_{total}=2\pi\cdot 4(4+6)\\\sf A_{total}=80\pi~cm^2\\\sf V=\pi r^2\cdot h\\\sf V=\pi\cdot4^2\cdot 6\\\sf V=96\pi~cm^3\end{array}}$