1 2 Points, Lines, And Planes
- 1. 1-2 Points, Lines, and PlanesL.E.Q. How do you explain the basic terns and postulates of geometry?
- 2. A location.Without size.Represented by a dot.Named by a capital letter.What is a point?“Point A”
- 3. The set of all points.What is space?
- 4. A series of points that extends in two opposite directions without end.You can name a line by any two points on the line with a little line symbol above them.What is a line?AB
- 5. Points that lie on the same line.What does it mean to say collinear?We would say that points A, B, C, and D are collinear.
- 6. Are points U, V, and P collinear? If they are, what line do they fall on?Name another set of collinear points.EXAMPLE 1: Identifying Collinear Points.
- 7. What is a plane?It is like a flat surface that extends infinitely along its length and width.It has no thickness.
- 8. Points and lines in the same plane.What does it mean to say that figures are coplanar?Points G and O are coplanar.
- 9. Name the plane represented by the front of the cube.Name the top plane.Name the left plane.Name a diagonal plane.EXAMPLE 2: Naming a Plane.
- 10. An accepted statement of fact.What is a postulate/axiom?
- 11. Through any 2 points there is exactly ______ line.Postulate 1-1
- 12. If 2 lines intersect, then they intersect in exactly ______ __________.Postulate 1-2
- 13. If two planes intersect, then they intersect in exactly ______ _________.Postulate 1-3
- 14. Through any three noncollinear points there is exacly ______ _________.Postulate 1-4
- 15. Explain how a postulate and a conjecture are different.Closure:
- 16. Pgs 13 – 15 #s 2 – 66 even.Homework: