Similar Figures
Proportional Thinking
Percent
Fractions Decimal Percent
100
What are the criteria for similar figures?
1) Same Shape 2) Different Sizes 3) Congruent/ equal corresponding angles 4) Corresponding sides are proportional
100
Office Depot is having a sale on pencils. It costs $6.55 for five boxes of pencils. How much for 9 boxes?
$11.79
100
Jane took a test. The test had 130 questions. All the questions have equal value. She answered 100 of the questions correctly. What percent of the questions did Jane answer correctly?
About 77%
100
What is 4/5 as a percent?
80%
200
What is the length of side x?
5 feet
200
Jack can run 5 miles in 4/5 of an hour. How far can he run in 4 hours?
25 miles
200
Jane took a test. All the questions have equal value. She answered 36 of the questions correctly. This was 75% of the questions. How many questions were on the test?
48 questions
200
What is 0.08 as a percent and as a fraction?
8% 8/100 OR 2/25
300
What is the length of side x?
30.3333 feet?
300
Doug runs 20 miles in 3 ½ hours. How many miles can he run in 1 hour?
About 5.71
300
Jane took a test. There were 60 problems on the test. Jane answered 55% of the questions correctly. How many questions did Jane answer correctly?
33 questions
300
What is 0.543 as a percent and as a fraction?
54.3% 543/1000
400
Jack is standing in a park. His shadow is 7 feet long. There is a statue nearby that is 17 feet tall and whose shadow is 23.8 feet long. How tall is Jack?
5 feet
400
A model of a house is built on a scale of 3 inches for every 2 feet of the actual house. How many feet are represented with 14 inches?
9.333 feet
400
Tom and Susan went to dinner. They left a 15% tip. If the total cost of their meal was $28.00, what was the amount of tip they left?
$4.20
400
What is 137% as a decimal?
1.37
500
Jane is buying a frame for a picture of her family. The picture is 7 inches in length and 9 inches wide. The frame has a width of 15.75 inches. What is the height of the frame?
12.25 inches
500
A mini bag of Skittles has 25 Skittles in it; 4 are green. If you buy a similar bag of 100 Skittles, how many would NOT be green?
84
500
An assembly line inspector inspected 300 machine parts. 250 of the parts passed inspection. What percent of the machine parts did NOT pass inspection?
16.67%
500
What is 47/ 1000 as a decimal and as a percent?
0.047 4.7%
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