Lesson 3-4Lesson 3-4
Adjacent Angles Adjacent Angles and Linear Pairs of and Linear Pairs of
AnglesAngles
Ohio Content Standards:Ohio Content Standards:
Ohio Content Standards:Ohio Content Standards:
Formally define geometric figures.
Ohio Content Standards:Ohio Content Standards:
Formally define and explain key aspects of geometric figures.
Adjacent AnglesAdjacent Angles
Adjacent AnglesAdjacent Angles
Angles that share a common side and have the same vertex, but
have no interior points in common.
Determine whether 1 and 2 are adjacent angles.
Determine whether 1 and 2 are adjacent angles.
1 2
Determine whether 1 and 2 are adjacent angles.
1 2
Determine whether 1 and 2 are adjacent angles.
1
2
Linear PairLinear Pair
Linear PairLinear Pair
When the noncommon sides of adjacent angles form a straight
line.
In the figure, CM and CE are opposite rays.
4
32
1
M
CE
A
TH
In the figure, CM and CE are opposite rays.
4
32
1
Name an Name an angle that angle that
forms a forms a linear pair linear pair with with TCM.TCM.
E
HT
A
M
C
In the figure, CM and CE are opposite rays.
4
32
1
Do 1 Do 1 and and TCE TCE form a form a linear linear pair? pair? Justify Justify your your answer. answer.
E
HT
A
M
C
Homework:Homework:
Pgs. 113-114 Pgs. 113-114 3-19 all, 3-19 all, 23-27 all23-27 all