4.1: classifying triangles - mrs. revilleza's math...
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Name: ____________________________________________________________ Period:____________
Formal Geometry 2016-2017 [email protected] MrsRevillezaMath.weebly.com
Chapter 4 Pages 232 - 317 Geometry – Glencoe McGraw-Hill (Red Textbook)
4.1: Classifying Triangles
“I can classify triangles by sides and angles.”
“I can find angle measures inside triangles.”
Classifying Triangles by SIDES
Classifying Triangles by ANGLES
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4.1: Classifying Triangles HOMEWORK
Page 239 – 240 #22, 24, 30, 32, 36, 50
#22 `#24
#30 #32
#36 #50
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4.2: Angles of Triangles
“I can apply the Triangle Angle-Sum Theorem.”
“I can apply the Exterior Angle Theorem.”
Theorem List
Theorem 4.1 - Triangle Angle-Sum Theorem
Theorem 4.2: Exterior Angle Theorem
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4.3: Congruent Triangles
“I can identify congruent triangles and corresponding parts.”
New Vocabulary
Congruent Polygons Corresponding Parts
Theorem 4.3: Third Angles Theorem
Theorem 4.4: Properties of Triangles Congruence Reflexive Property of Triangle Congruence Symmetric Property of Triangle Congruence Transitive Property of Triangle Congruence
CPCFC
Corresponding Parts of Congruent Figures are Congruent
CPCTC
Corresponding Parts of Congruent Triangles are Congruent
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4.3: Congruent Triangles HOMEWORK
Page 257 – 259 #10-16 even & 20-22 even
#10 #12
#14 #16
#20 #22
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4.4: Proving Triangles Congruent – SSS, SAS
“I can decide whether two triangles are congruent using 2 important theorems.”
POSTULATE 4.1 POSTULATE 4.2
SSS SAS
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4.5: Proving Triangles Congruent – ASA, AAS
“I can decide whether two triangles are congruent using 2 (MORE) important theorems.”
POSTULATE 4.3 THEROREM 4.5 THEROEM 4.9
ASA AAS HL
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4.6: Isosceles and Equilateral Triangles
“I can use the properties of an isosceles triangle.”
“I can use the properties of an equilateral triangle.”
New Vocabulary
Isosceles Triangle –
Legs –
Base –
Vertex Angle –
Base Angles –
THEROREM 4.10: ISOSCELES TRIANGLE THEOREM
THEROREM 4.11: CONVERSE OF ISOSCELES TRIANGLE THEOREM