Question

O volume do cone circular reto com 12 cm de altura e 5 cm de raio da base é, em cm³, igual a: *

Answer 1

$\large\boxed{\begin{array}{l}\underline{\rm Volume\,do\,cone}\\\sf V=\dfrac{1}{3}\cdot \pi\cdot r^2\cdot h\\\\\sf V=\dfrac{1}{\diagdown\!\!\!\!3}\cdot\pi\cdot5^2\cdot\diagdown\!\!\!\!\!\!12^4\\\\\sf V=\pi\cdot25\cdot4\\\sf V=100\pi\,cm^3\end{array}}$