IntGeom1.2.notebook
September05,2012
1.2Points,Lines,andPlanes
Point: yellow and red dots
Line: white yard lines
Plane: green playing field
Vocab
Notation
Diagram
Point: has no dimension.
Represented by a dot.
Line: has one dimension.
Two points create a
IntGeom3.4Day1and2.notebook
October03,2013
3.4 Angles of a Triangle
Triangle: a polygon with 3 sides
Classification of triangles by sides:
Classification of triangles by angles:
1
IntGeom3.4Day1and2.notebook
October03,2013
2
IntGeom3.4Day1and2.notebook
Oc
IntGeom3.5.notebook
October08,2013
3.5 Interior and Exterior Angle Sums of Polygons
# of sides:
# of diagonals:
# of Triangles:
Interior < Sum:
# of sides:
# of diagonals:
# of Triangles:
Interior < Sum:
# of sides:
# of diagonals:
# of Triangles:
Interio
IntGeom4.2_Day2_IntroToProofs.notebook
October23,2013
Writing formal 2 - column proofs
Getting started:
Draw the illustration for your proof - accurately and with labels.
Write the "Given" and "Prove" information.
Always mark the triangles with the given
IntGeom4.2_ProvingTrianglesCongruent.notebook
October22,2013
Warm-Up
Write a congruency statement for the two triangles.
A
C
G
T
D
O
1
IntGeom4.2_ProvingTrianglesCongruent.notebook
October22,2013
Proving Triangles Congruent.an Investigation.
http:/illumin
IntGeom4.3_TriangleProofsnotes.notebook
October28,2013
Pg. 129: #1
Q
Given:
P
R
Prove:
S
Statements
Reasons
1
IntGeom4.3_TriangleProofsnotes.notebook
October28,2013
Pg. 129: #2
Q
Given:
P
R
Prove:
S
Statements
Reasons
2
IntGeom4.3_TriangleProofsnotes.note
IntGeom_Chapter1and2_Review_answers.notebook
September26,2013
Test(Chs.1and2)Review
A proof consists of five parts:
1
IntGeom_Chapter1and2_Review_answers.notebook
September26,2013
Test(Chs.1and2)Review
2
IntGeom_Chapter1and2_Review_answers.notebook
Septem
IntGeom1.3segments.rays,SegAddPost.notebook
September05,2013
Warm-Up and Homework Review
1.
2.
1
IntGeom1.3segments.rays,SegAddPost.notebook
September05,2013
1.3Segments,Rays,andDistance
New Terms
Postulate: a rule that is accepted without proof.
Theorem:
IntGeom1.5.notebook
September09,2013
Homeworkwas:pg.21,22:934(all)AnyQuestions?
1
IntGeom1.5.notebook
September09,2013
pg. 22: #35
6 rays!
2
IntGeom1.5.notebook
September09,2013
Postulates:
B
A
A line contains at least 2 points
A plane contains at least 3
IntGeom1.5(day2).notebook
September10,2013
Postulates:
B
A
A line contains at least 2 points
A plane contains at least 3 points, not all in one line
Space contains at least 4 points, not all in one plane.
D
Through any 2 points, there is exactly one line
IntGeom2.4.notebook
September18,2013
Red lines.parallel?
1
IntGeom2.4.notebook
September18,2013
How about these?
2
IntGeom2.4.notebook
September18,2013
and.?
3
IntGeom2.4.notebook
September18,2013
Decide whether each of these relationships has reflexive,
IntGeom2.5.notebook
September20,2013
Class Work - work together!
pg 53,54: 24-34 (all)
1
IntGeom2.5.notebook
September20,2013
2.5
Definition of Perpendicular Lines:
If two lines are perpendicular, then they form 90 degree angles.
If two lines are perpendi
IntGeom4.3_TriangleProofsnotes.notebook
October28,2013
Pg. 129: #1
Q
Given:
P
R
Prove:
S
Statements
Reasons
1
IntGeom4.3_TriangleProofsnotes.notebook
October28,2013
Pg. 129: #2
Q
Given:
P
R
Prove:
S
Statements
Reasons
2
IntGeom4.3_TriangleProofsnotes.note