CylinderrÝr

\(O_A = 2 \cdot \pi \cdot \left( R + r \right) \cdot h \)

\(A = 2 \cdot \pi \cdot \left( R + r \right) \cdot \left( R - r + h \right) \)

\(V = \pi \cdot h \cdot \left( R^2 - r^2 \right) \)