Points, Lines, and Planes

In order to start our journey into Geometry, we first have to understand the meaning of some key terms!
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Part 1
1. Move points E, F, and G so they are [b]coplanar[/b] (lie on plane [i]A[/i]). Planes are determined by three points (points are determined by one, and lines by two!). Plane [i]A[/i] has dotted "edges" because it extends infinitely in all directions! Think of a plane as a floor that extends infinitely.[br]2. Move point H so it lies outside of plane A.[br]3. Move the line so it contains point H and intersects the plane at point F. Points H and F are [b]collinear [/b]because they lie on the same line ([math]\longleftrightarrow HF[/math]).[br]3. Move the line segment to create line segment [math]\overline{EF}[/math].[br]4. Move the ray to create ray [math]\longrightarrow GK[/math].[br]
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:[br][br]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 [math]\longleftrightarrow ED[/math] intersect plane [i]P[/i]?
2. In the image below, where does line [math]\longleftrightarrow ED[/math] intersect plane [i]P[/i]?
3. Where does line [math]\longleftrightarrow ED[/math] intersect plane [i]P[/i]?
Part 4: Intersecting Planes
1. Where does plane [i]A [/i]intersect with plane [i]B[/i]?
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.]
You have completed the activity! Wehoo! Make sure to hit "Submit" below. Skim through pages 5-6 to clarify any missing pieces. Then stay in this group meet and start in on your homework! This is our "tutorial time" for the remainder of the class, so pleas
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Información: Points, Lines, and Planes