Axisymmetric Shape: An axisymmetric shape possesses symmetry about an axis, meaning that if you rotate it around its central line (axis), it will look exactly the same at every angle.
Volume by Cross-sections Method: This method involves finding volumes by integrating areas obtained from cross-sectional shapes along an interval or region.
Area Moment Of Inertia: Also known as second moment or mass moment, this property measures how resistant an object is to changes in its rotational motion. It depends on the shape and distribution of mass within an object.