geometry lesson 2a - moon valley high...
TRANSCRIPT
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2A_AnglesAndTheirMeasures
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September03,2012
GeometryLesson2AAnglesandTheirMeasuresTLWname,classify,andidentifythevertexandsidesofangles.
TLWapplytheangleadditionpostulateandangleterminologytosolveproblems.
MHS4.1.06(2008AZstandards)Solveproblemsusingangleandsidelengthrelationshipsandattributesofpolygons.
BellWork
Giventhefollowingsequence:a0 =1,a1 =2,a2 =5,a3 =8,a4 =11
Whichformulageneratesthegivensequence?
a) an=n+3
b) an=3n1
1.
BellWork
Giventhesequence:a0 =3,a1 =6,a2 =9,a3 =12,
Whichformulageneratesthegivensequence?
a) an=6n+3
b) an=3n+3
2.
BellWork
3. IfMisthemidpointofAB,whatarethecoordinatesofB?
BellWork
4. GivenM(5,8)isthemidpointofQR.ThecoordinatesofQis(10,1).WhatarethecoordinatesofR?
BellWork
5.WhatistheexactdistancebetweenCandD?
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2A_AnglesAndTheirMeasures
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September03,2012
Vertex RightAngledefinition example
ObtuseAngledefinition example
StraightAngledefinition example
AcuteAngledefinition example
Writethreenamesfortheangles,namethevertexandthesides.
names
vertex sides
classification:
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2A_AnglesAndTheirMeasures
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September03,2012
Writethreenamesfortheangles,namethevertexandthesides.
names
vertex sides
classification:
Writethreenamesfortheangles,namethevertexandthesides.
names
vertex sides
AngleAdditionPostulatedefinition example definition example
Adjacent
Apply the Angle Addition Postulate to find the measure of the unknown angle.
Apply the Angle Addition Postulate to find the measure of the unknown angle.
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2A_AnglesAndTheirMeasures
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September03,2012
Apply the Angle Addition Postulate to find the measure of the unknown angle.
Apply the Angle Addition Postulate to find the measure of the unknown angle.
Classification Definition Example
RightAngle
measures180o
Acute
Pleasetrashthenonadjacentangles
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Attachments
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Dr. Jennifer Johnson
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