6th Grade Math Textbook, Progress

Step 2

Step 1

Materials:straightedge, paper, pencil, protractor, compass

Copy the table above onto your own paper.

Make Circle Graphs

12-12

Hakan surveyed the students in his class to find the

number of television sets in each home. You can help

Hakan make a circle graph to display his results.

Complete the Percent of Total column in Hakan’s table

by solving proportions.

Find what percentof the total number of homes, 30, is

represented by 6 homes.

part part (%)




3

6

0




1

n

00

whole whole (%)

6  100  30 n

600  30  30 n 30

20 n

So 


3

6

0




1

n

00

20%

Does the Percent of Total column add up to 100%?

If not, check your work with a calculator.

Number of Number Percent Angle

TVs Per Home of Homes of Total Measure

1 6 20% 72 

2 12??

3 9??

4 or more 3??

Totals 30 100% 360 

In a circle graph, the whole

represents 100%or 360°.

1.3

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