1. AIM: Circle Graphs
Do Now
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2. Homework: 1.) Pages 314-315 #5-9 all
2.) Pages 318-319 #10-15 all, 22, 23
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3. 3

4. Anticipatory Set: Answer the following question in a
complete sentence.
1.) How are circle graphs used in real life? Where have
you seen them used?
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5. FINDING CENTRAL ANGLES OF A CIRCLE GRAPH:
There are 360° in a circle. Use the following proportion to the central
angle of a sector, if the data is given as percents.
Percent = Central Angle
100 360
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6. 540
720
1980
360
6

7. FINDING CENTRAL ANGLES OF A CIRCLE GRAPH:
There are 360° in a circle. Use the following proportion to the central
angle of a sector, if the data is given as part of a total number.
Part = Central Angle
Whole 360
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8. 1620
900
720
360
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9. BEFORE YOU LEAVE
Describe the similarities and differences in the
proportions used today.
Similarities Differences
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10. Mr. Tjersland's Math 7
Homework: Page 1, 2, and 3 of Midterm Review Packet 2
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11. AIM: Circle Graphs
FINDING CENTRAL ANGLES OF A CIRCLE GRAPH:
There are 360° in a circle. Use the following proportion to the central
angle of a sector, if the data is given as percents.
Percent = Central Angle
100 360
11

12. 540
720
1980
360
12