# Two Pieces of a Fence (AR Modeling Challenge)

Using only 2 surface equations (with domain restrictions), how can we reconstruct what is seen in the screencast below?
lies on the .
4) The

**Clues:**1) The vertex of the**blue paraboloid of revolution**is (3, 0, 5). 2) The point**paraboloid of revolution**. 3) The radius of the circular opening at the bottom of the**paraboloid of revolution**=**pink surface**is**half a cylinder**. This **cylinder**has a radius = 2. 5) The axis of the**cylinder**is can be found by translating the xAxis by the vector <0, 0, -2>.## Quick Demo

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