isosceles triangle proof.notebook
November 07, 2016
11/7/16
Objective: How do we use an isosceles triangle in a proof?
Do Now: An isosceles triangle has a vertex angle of 50 degrees.
Find each base angle
1
isosceles triangle proof.notebook
November 07, 2016
2
isosceles triangle proof.notebook
November 07, 2016
3
isosceles triangle proof.notebook
ex 2:
November 07, 2016
I
Given: Triangle EIT is isosceles and <I is
the vertex angle. EC = TL
Prove: IL = IC
E
L
C
T
4
isosceles triangle proof.notebook
November 07, 2016
Ex 3:
B
5