# Igloo (AR Modeling Challenge)

- Author:
- Tim Brzezinski

- Topic:
- Sphere

Can you build this igloo with 8 entrances (& hole at top) within GeoGebra Augmented Reality?
Watch the screencast below for details. .
The 8 floor openings are equally spaced apart.

**Here are some additional clues:**The**blue surface**is part of a hemisphere. The projection of each hole onto**the plane z = 0**is either a full circle or part of a circle with radius =**As an added challenge:**The**blue surface**has 9 openings altogether. Thus, we can input 9 domain restrictions to get all of these. However, how can we construct**this surface**USING ONLY 3 DOMAIN RESTRICTIONS? (This was how it was actually created prior to recording).## Discover Resources

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