How to Find Volume by Spinning: Shell Method
TL;DR: Sometimes slicing perpendicular to the axis is a mess — the radii change weirdly or the bounds get ugly. The shell method takes a different approach by integrating thin cylindrical shells parallel to the axis instead. Each shell contributes 2 pi times its radius times its height times dx. Use it when slicing along […]
How to Find 3D Shapes Nets?
Step by step guide to finding \(3D\) shapes nets \(3D\) shapes nets Make sure that the solid and the net have the same number of faces and that the shape of the solid faces matches the shapes of the corresponding faces in the net. Visualize how the net is to be folded to form the […]
