Geom1.6.notebook
January 09, 2014
Geometry
Ch.1 Notes Page 3
P3 1­6 Measuring Angles
Jan 7­6:33 AM
Protractor Postulate: O is a point with opposite rays called OA and OB going to the left and right. Any ray drawn up from O creates and angle with a measure between 0o and 180o.
Jan 7­6:33 AM
1
Geom1.6.notebook
January 09, 2014
Angles
There are 4 ways to name this angle.
1.
2.
3.
4.
Jan 7­6:33 AM
Name CED in two other ways.
1.
2.
A
C
1
D
2
E
Jan 5­10:57 AM
2
Geom1.6.notebook
January 09, 2014
Jan 8­7:24 AM
Angle Classification
Jan 7­6:33 AM
3
Geom1.6.notebook
January 09, 2014
Name all of the acute angles in the figure.
Name all of the obtuse angles in the figure.
Name all of the right angles in the figure.
Jan 7­3:24 PM
Jan 7­3:25 PM
4
Geom1.6.notebook
January 09, 2014
Angle Addition
A
C
1
D
2
E
Jan 7­3:29 PM
Jan 7­6:42 AM
5
Geom1.6.notebook
January 09, 2014
Angle Addition
Jan 7­3:29 PM
Angle Addition
Jan 7­3:32 PM
6
Geom1.6.notebook
January 09, 2014
Jan 7­3:33 PM
Angle Pairs
Jan 8­7:28 AM
7
Geom1.6.notebook
January 09, 2014
Examples:
Jan 7­3:33 PM
Find the Measure of each angle.
Jan 7­3:33 PM
8
Geom1.6.notebook
January 09, 2014
3
4
2
5
1
Jan 7­3:50 PM
Can you make this conclusion?
(From this picture...)
P
T
W
Q
V
Jan 7­3:51 PM
9
Geom1.6.notebook
January 09, 2014
Solve for x...
Jan 7­3:53 PM
HW #3
1­6 P40 #1­34, 42­44
Do #9­12 First (You need a protractor.) Please put your name and class period at the top of
the homework. Also include the homework number.
Terms:
acute angle, obtuse angle, right angle, straight angle, congruence, vertical angles, adjacent angles, complementary angles, supplementary angles
Jan 7­6:34 AM
10