# Airport Hangar (AR Modeling Challenge)

- Author:
- Tim Brzezinski

In this GeoGebra Augmented Reality Modeling Challenge, the goal is to reconstruct the roof of this Lego airport hangar by authoring 2 surface equations with domain restrictions.

**Modeling Clues:**1) In the screencast below, the planes*x*= 0 and*y*= 0 serve as planes of symmetry for this object . 2) See info in the picture. These are actual measurements. 2) The slant edge (that measures 47 cm) would need to be extended another 120 cm to meet the plane*x*= 0. 3) For the scale used here in this GeoGebra AR coordinate system, the line containing the points (0,0,5) & (0, 1, 5) serves as the line where the**2 blue planes**, if extended upward, would eventually meet. 4) The width of the**top rectangular piece**is obviously 80 cm * 2 = 160 cm. The length of this**rectangle**is 284 cm.