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JEOPARDY!. Click Once to Begin. Stretching and shrinking. JEOPARDY!. Vocabulary. Hodge Podge. Problems 1. Problems 2. Problems 3. Problems 4. 100. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 400. - PowerPoint PPT Presentation
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Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Click Once to BeginJEOPARDY!
Stretching and shrinking
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
JEOPARDY!
100 100 100 100 100 100
200 200 200 200 200 200
300 300 300 300 300 300
400 400 400 400 400 400
500 500 500 500 500 500
Vocabulary
Hodge Podge
Problems 1
Problems 2
Problems 3
Problems 4
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
A comparison of two quantities
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
ratio
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
The number used to multiply a figure by to get a
similar figure
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Scale factor
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Sides that are in the same position in a similar figure are
called….
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Corresponding sides
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Corresponding angles must have the same?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
measure
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Similar figures must have: (two things)
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
1. Corresponding angles have the same measure, 2.
corresponding sides have equivalent ratios.
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
What is the relationship between 3 and 1/3 called?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
reciprocals
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What is the number 8 called in the rule (8x,8y)?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
coefficient
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
If we apply the following rule, will we have similar
figures? Why or why not? (.5x,.5y)
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Yes, the coefficients of x and y are the same
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
What copier size factor would you apply to enlarge a figure 1.5 times?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
150 %
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
If the perimeter of one figure is 10, and
the perimeter of a similar figure is 50, what was the scale
factor used to enlarge the figure?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
5
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
I want to enlarge a 3 x 5 inch picture by a
scale factor of 300%. How large would it be?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
9 x 15
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Which of the following rectangles are similar? Show math to prove.
4 x 86 x 16
10 x 20
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
4 x 8 and 10 x 20
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
A figure was enlarged by a scale factor of 4.
How many times bigger is the perimeter?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
4
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
A figure was enlarged by a scale factor of 4,
how many times bigger is the area?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
4 squared = 16 times bigger
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
21
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
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X = 36
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
1080 cm
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2x,2y
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Explain what happens to the figure when the
rule is applied
(3x,6y)
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
3 times wider, 6 times taller
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
A model tv is created. The actual tv screen is
18.8 cm by 24.5 cm. The scale factor
between the actual and model is 1/5. What are the dimensions of the
model tv?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
3.76 cm x 4.9 cm
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
If you applied the rule (2x, 1/2y) to a figure, would the figures be similar? Why or why
not?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
No, different coefficients.
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
A scale factor of 3 is applied to a figure.
How many times bigger will the area of
the image be?
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
9
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Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
(.5x, .5y) yes they are similar. Scale factor is
1/2
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
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10/8 or 1.25
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
RS = 6RQ = 10
y = 50 degrees
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192 cm squared
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
10
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
5/6 = x /24
x = _____
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
20
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
3/7 ÷ 4/7
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3/4
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Write the fraction as a decimal and as a percent.
3/8
Template by Modified byBill Arcuri, WCSD Chad Vance, CCISD
.375 = 37.5 %