Embed Size (px)
Citation preview
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
1
August 22, 2013
"Do Now"
Write as many things as you can in Ms. Stalvey's classroom that represent a point.
Write as many things as you can in Mrs. Stalvey's classroom that represent a line.
Write as many things as you can in Ms. Stalvey's classroom that represent a plane.
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
2
August 22, 2013
Unit 2: Tools of Geometry1.1 Points, Lines, and Planes
NameGeometry/Block
Date
Undefined Terms Words only explained using examples and descriptions
#Point
#Line
#Plane
It has location and nothing else. No size. No shape. No friends.
A
A straight, unbroken set of points that goes on forever. It has infinite length but no thickness.
A B
A surface with length and width but no thickness.Extends infinitely in all directions.Any 3 points (not on the same line) make a plane.
A BC
D
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
3
August 22, 2013
#vocab
With your group members, research your vocabulary word (using your textbook).
Then, on your note card:1. Write its definition into your own words2. Include any other specific information/details3. Create a picture or visual representation (example)
Write neatly and clearly these will go on the back wall!
Group Roles:All will research the vocabulary word .1. Writer2. Artist3. Presenter4. Time Keeper5. Materials
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
4
August 22, 2013
#Collinear
#Coplanar
#Intersection
#Space
#Line Segment
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
5
August 22, 2013
Example 1:
Draw and label a figure for the following situation.
Plane R contains lines AB and DE, which intersect at point P.
Add point C on plane R so that it is not collinear with AB or DE.
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
6
August 22, 2013
Example 2:
a) How many planes appear in this figure?
b) Name 3 points that are collinear.
c) Are points A, B, C, and D coplanar? Explain.
d) At what point do lines DB and CA intersect?
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
7
August 22, 2013
Unit 2: Tools of Geometry1.2 Linear Measure
NameGeometry/Block
Date
Because line segments have end points, they can be measured.
Measure each
segment according to the given ruler. Be sure to include units!!!
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
8
August 22, 2013
# Between Point B is between points A and C if and only if A, B, and C are collinear and AB + BC = AC
A B C
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
9
August 22, 2013
Example 1:
Find XZ.
Assume the figure is not drawn to scale.
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
10
August 22, 2013
Example 2:
Find TU.
Assume the figure is not drawn to scale.
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
11
August 22, 2013
Example 3:
Find the value of x and ST if T is between S and U, ST = 7x, SU = 45, and TU = 5x – 3.
Points, Lines, and Planes (1.1), Linear Measure (1.2).notebook
12
August 22, 2013
#Congruent Having the same measure
