Points, Lines, and Planes
In order to start our journey into Geometry, we first have to understand the meaning of some key terms!
Part 1
Part 2: Intersections between two lines
Take a few minutes to mess around with the toolbar below. Create a point, draw a line, make a triangle, draw a picture! Have a leetle fun! Then answer the following question: There are three cases of relations ("intersections") between two lines. What are they? Show one case using the toolbox below! Remember that a line is determined by two points, so start by adding two points before drawing a line between them.
Part 3: Intersections of a plane with a line
1. In the image below, where does line intersect plane P?
2. In the image below, where does line intersect plane P?
3. Where does line intersect plane P?
Part 4: Intersecting Planes
1. Where does plane A intersect with plane B?
2. There are two other cases of relations ("intersections") between two planes. What are they? [Hint: Think about two pieces of paper with "edges" that extend infinitely in all four directions of the paper.]