Warm Up

1
Warm Up
8/24/09

• Do 1-4 on Page 12

2
At the end of the classeach student should be
able to define congruence, measure segments with
accuracy and use these measurements to problem
solve.
3
If you have three collinear points then the two
pieces add up to the whole.
A
C
B
AB BC AC
4
A
B
C
B
AB
AB BC
AB BC AC
5
If two line segments have the same measure then
they are congruent.
P
The mathematical symbol used to denote congruent is         .The symbol is made up of two parts         which means the same shape (similar) and          which means the same size (equal). 
CongruentSymbol              
4cm
 
Q
Y
4cm
XY PQ
X
6
If two line segments have the same measure then
they are congruent.
P
2cm
4cm
R
 
Q
Y
4cm
2cm
XY PQ
X
Z
7
HomeworkLesson 1-2, p. 167-1522-32
even34-3756-57(21 problems)