6. REVIEW THEOREMS ON TRIANGLE INEQUALITIES
π΄π΅ β π·πΈ
πΈπΉ β π΅πΆ
β π΅ > β πΈ
π΄πΆ > π·πΉ
Converse of Hinge Theorem
7. OBJECTIVES:
Learning Competency: Proves inequalities in a triangle.
M8GE-IVc-1
Learning Objectives:
1. Familiarize triangles inequality theorems.
2. Prove inequalities in a triangle.
3. Participate actively on class discussion.
29. EXAMPLE 5
Given:
πΆπΈ is a median of LOV
πβ π΄ > πβ π΅
Prove:
πβ πΏ > πβ π
Proof:
Statement Reasons
1.
2.
3.
4.
5.
6.
30. EXAMPLE 5
Given:
πΆπΈ is a median of LOV
πβ π΄ > πβ π΅
Prove:
πβ πΏ > πβ π
Proof:
Statements Reasons
1. πΆπΈ is a median of ο²LOV Given
2. E is the midpoint of πΏπ Definition of Median
3. πΏπΈ β πΈπ Definition of Midpoint
4. ππΈ β ππΈ Reflexive
5. πβ π΄ > πβ π΅ Given
6. ππ > ππΏ SAS Inequality ( Hinge Theorem)