# Lesson 1-1: H.O.T. Problem #58

- Author:
- William Morris

What is the greatest number of planes determined using any three points

*A, B, C,*and*D,*if no three points are collinear? Use the Geogebra Applet below to find out!## Instructions

1. | | Click on the Plane through 3 Points icon in the Toolbar and select 3 points on the screen to define your first plane. |

2. | | Repeat Step 1 until you have created as many planes as you think are possible. |

3. | | Activate the Move Tool and select one of the planes. |

4. | | Open the Style Bar using the Style Bar button the in right upper corner. |

5. | | Change the color of the plane. |

6. | | Repeat Steps 3-5 until each of the planes is a different color. |

How many different planes were you able to create using only points *A, B, C *and *D*?