Chap 8 Day 3.notebook
February 10, 2015
Review:
Solve the following problems by setting up a proportion.
1) A fruit stand sells 4 avocados for $3. How much will it cost for 12 avocados?
2) A baseball team scores 56 runs in 9 games. At this rate how many runs should they score in 27 games?
3) The policy for a certain restaurant buffet is to have 19 desserts for every 16 people. If they plan for 320 people, how many desserts should they make?
Chapter 8 day3 2015
Chap 8 Day 3.notebook
February 10, 2015
1
4) To make one cup of hot chocolate, 1 tablespoons of 2
cocoa mix must be used. If a concession stand wants to make 70 cups of hot chocolate, how much mix will they need?
5) On a recent day, the exchange rate for US dollars to British pounds was 1 dollar per 0.62 British pound. On that day, how many pounds would you get for 250 dollars?
6) In a survey of customer satisfaction, 200 customers were asked about services received. Out of these 200, 160 of the customers were satisfied with the services received. If there are 1600 customers, how many would you expect to be satisfied?
Chapter 8 day3 2015
Chap 8 Day 3.notebook
February 10, 2015
Geometry Chapter 8 Day 3
Similar Polygons (～)
OBJ: To identify similar polygons
Defn: If polygons are ～
, then corresponding angles are ≅
and corresponding sides are proportional.
Given: ABC ～ XYZ
What can you conclude?
Given: LMNO ～ ABCD
What can you conclude?
Chapter 8 day3 2015
Chap 8 Day 3.notebook
Given:
February 10, 2015
A
W
B
12
10
10
D
X
15
18
18
C
12
15
Z
Y
Are these ～ ? If so, what is the ～ ratio?
(ALWAYS GIVE RATIO IN ORDER OF FIGS) ～
Given:
J
8
S
W
8
X
4
C
H
10
Z
Y
Are these ～ ? If so, what is the ～ ratio?
Chapter 8 day3 2015
Chap 8 Day 3.notebook
February 10, 2015
Given: quad ABCD ～ WXYZ
A
2
x
W
B
y
3.2
C
5
D
Z
6
Find x and y
～
Assign P425 (1-6; 8-16even)
1 fig for 1-6; 1 fig each for 8-16even
Chapter 8 day3 2015
X
Y
Chap 8 Day 3.notebook
Chapter 8 day3 2015
February 10, 2015