1. 4-5 Isosceles & Equilateral Triangles
Type your name here
4-5 Isosceles & Equilateral Triangles
Label this in here
Label this in here
Label these here
Label this here
Isosceles Triangle Theorem (I.T.T.)
Type it here
Converse of the I.T.T.:
if angles of a triangle are congruent, then ... C
Theorem
If BD is the < bisector of this isosceles triangle, what else is true about
BD ? B D A
A corollary is [in your own words]..
Type them here
and here

2. Verify the proof, then print this form w/ name on it
Read the proof for the Isosceles Triangle Theorem on pg 229 to attempt to prove (and sort) the ITT Converse. C
GIVEN: <A <B
PROVE: 1 2 B A D
A.S.A. postulate
<1 <2
Given
BD DA, <1 and
<2 are right angles
All right <‘s are cong.
Statements Reasons
BDC ADC
There is 1perp. bisector
of a segment
<A <B
C.P.C.T.C.
Let CD be the bisector of BA
Def. of perp. bisector
Verify the proof, then print this form w/ name on it
You may begin packet pg 7