Geometry | Volume of a Sphere & Hemisphere

The video tutorial explains how to calculate the volume of a sphere and a hemisphere. It begins with an introduction to spheres, describing them as round objects like planets or stars, and explains the concept of radius. The tutorial then provides a detailed calculation of a sphere's volume using the formula 4/3 pi R cubed, with an example where the diameter is 10 millimeters. The video advises against converting the result to a decimal for precision. Next, it introduces hemispheres, explaining them as half of a sphere, and demonstrates how to calculate their volume by halving the sphere's volume. The tutorial concludes by mentioning that the next video will cover surface area calculations.

What new insight or understanding did you gain from this video?