Congruence

1
Congruence
PRE-ALGEBRA LESSON 9-5
(For help, go to Lesson 6-3.)
Check Skills Youll Need
9-5
2
Congruence
PRE-ALGEBRA LESSON 9-5
9-5
3
Congruence
PRE-ALGEBRA LESSON 9-5
In the figure, TUV WUX.
a. Name the corresponding congruent angles.
b. Name the corresponding congruent sides.
Quick Check
9-5
4
Congruence
PRE-ALGEBRA LESSON 9-5
List the congruent corresponding parts of each
pair of triangles. Write a congruence statement
for the triangles.
a.
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5
Congruence
PRE-ALGEBRA LESSON 9-5
(continued)
b.
Quick Check
9-5
6
Congruence
PRE-ALGEBRA LESSON 9-5
SAS
9-5
7
Circles
PRE-ALGEBRA LESSON 9-6
Solve the proportion
9-6
8
Circles
PRE-ALGEBRA LESSON 9-6
(For help, go to Lesson 6-2.)
Solve each proportion. Round to the nearest whole
number where necessary. 1. 2.
3. 4.
Check Skills Youll Need
9-6
9
Circles
PRE-ALGEBRA LESSON 9-6
Solutions 1. 36 2. 270 3. 54
4. 109
9-6
10
Circles
PRE-ALGEBRA LESSON 9-6
Find the circumference of the circle.
The circumference of the circle is about 37.68 in.
Quick Check
9-6
11
Circles
PRE-ALGEBRA LESSON 9-6
Make a circle graph for Jackies weekly budget.
9-6
12
Circles
PRE-ALGEBRA LESSON 9-6
(continued)
Quick Check
9-6
13
Circles
PRE-ALGEBRA LESSON 9-6
Draw a circle graph of the data.
9-6
14
Circles
PRE-ALGEBRA LESSON 9-6
(continued)
Use a compass to draw a circle.
Quick Check
9-6
15
Circles
PRE-ALGEBRA LESSON 9-6
Solve. 1. Find the circumference of a circle
with a diameter of 2.5 in. 2. Ten out of 22
students surveyed prefer milk with their
breakfast. Find the measure of the central
angle to represent this data in a circle
graph. 3. Draw a circle graph of the data.
about 7.85 in.
about 164
9-6