1.1. Points, Lines, and Planes http://www.ck12.org
1.1 Points, Lines, and Planes
Learning Objectives
- Understand and build upon the terms:point, line,andplane.
- Apply and use basic postulates.
- Draw and label terms in a diagram.
Review Queue
This subsection will provide a review of Algebra and previous lessons.
- List and draw pictures of five geometric figures you are familiar with.
- A plane is an infinitely large, flat, two-dimensional surface. List three examples of objects from real life that
resemble planes. - Solve the algebraic equations.
a. 4x− 7 = 29
b. 2(− 3 x+ 5 )− 8 =−x+ 17
c.x^2 − 2 x− 15 = 0
d.x^2 = 121
Know What? Geometry is everywhere. Remember these wooden blocks that you played with as a kid? If you
played with these blocks, then you have been “studying” geometry since you were a child. For example, if you were
to move the four triangles at the center of the picture, so that the vertex in the middle was on the outside, what shape
would you make? (Flip each triangle outward)