# Cylinder and Hemisphere AR Modeling Challenge

- Author:
- Tim Brzezinski

- Topic:
- Cylinder, Geometry, Solids or 3D Shapes, Sphere

In the screencast below, the cylinder and hemisphere have equal radii.
The height of the cylinder = the diameter of the hemisphere.
The center of the hemisphere is lying on the top base circle of the cylinder itself.
How can we reconstruct such a model in GeoGebra 3D app on your device?
Try to do so, and explore in Augmented Reality!