[DaveMakesStuff] demonstrates a great technique for 3D printing a sphere; a troublesome shape for filament-based printers to handle. As a bonus, it uses a minimum of filament. His ideas can be ...

A cone is a 3D shape with 2 faces and one edge A sphere is a 3D shape. It has one continuous face and no edges A cylinder is a type of prism. It has 3 faces and 2 edges The volume of a cone is ...

2 \end{array}\) In the exam \(\text{Surface area} = 4 \pi r^2\) is given on the formula sheet A hemisphere is half of a sphere. The volume can be found by calculating the volume of the whole ...