1. Notes Over 9 - 6 Circles Parts of a Circle Circumference Radius
Diameter
Chord

2. Notes Over Circles
Circumference = p d
3.1

3. Notes Over Circles
Circumference = p d 5

4. Notes Over Circles
Circumference = p d

5. Notes Over Circles
Circumference = p d
1.7

6. Notes Over Circles
5. At the spring dance, there were 120 freshman, 82 sophomores, 137 juniors, and 101 seniors. Draw a circle graph of the data.

7. Notes Over Circles
5. At the spring dance, there were 120 freshman, 82 sophomores, 137 juniors, and 101 seniors. Draw a circle graph of the data.

8. Notes Over Circles
5. At the spring dance, there were 120 freshman, 82 sophomores, 137 juniors, and 101 seniors. Draw a circle graph of the data.

9. Notes Over Circles
5. At the spring dance, there were 120 freshman, 82 sophomores, 137 juniors, and 101 seniors. Draw a circle graph of the data.

10. Notes Over Circles
5. At the spring dance, there were 120 freshman, 82 sophomores, 137 juniors, and 101 seniors. Draw a circle graph of the data.
sophomores
freshman
juniors
seniors

11. Which section of the graph represents rent?
Pg – 6 #1 – 11, 12 – 22
Use the graph at the right. A B C D E
1. Nancy spends a third of her salary on rent, a fifth on utilities, a fourth on food, 5% on transportation, and she saves a sixth.
Which section of the graph represents rent? A C
Utilities? D
Food? E
Transportation? B
Savings?

12. Pg 472 9 – 6 #1 – 11, 12 – 22 2. radius = 3.5 cm Circumference = p d
Find the circumference of each circle with the given radius or diameter.
Circumference = p d
2. radius = 3.5 cm
3.5

13. Pg 472 9 – 6 #1 – 11, 12 – 22 3. diameter = 100 in Circumference = p d
Find the circumference of each circle with the given radius or diameter.
Circumference = p d
3. diameter = 100 in
100

14. Pg 472 9 – 6 #1 – 11, 12 – 22 4. radius = 4 2/3 m Circumference = p d
Find the circumference of each circle with the given radius or diameter.
Circumference = p d
4. radius = 4 2/3 m
4 2/3

15. Pg 472 9 – 6 #1 – 11, 12 – 22 5. diameter = 0.1 m Circumference = p d
Find the circumference of each circle with the given radius or diameter.
Circumference = p d
5. diameter = 0.1 m
0.1

16. Pg 472 9 – 6 #1 – 11, 12 – 22 6. radius = 18 in Circumference = p d
Find the circumference of each circle with the given radius or diameter.
Circumference = p d
6. radius = 18 in 18

17. Pg 472 9 – 6 #1 – 11, 12 – 22 7. diameter = 2 mi Circumference = p d
Find the circumference of each circle with the given radius or diameter.
Circumference = p d
7. diameter = 2 mi 2

18. Pg 472 9 – 6 #1 – 11, 12 – 22 8. 35% 9. 50% Central Angle = % (360)
Find the measures of the central angles that you would draw to represent each percent in a circle graph. Round to the nearest degree.
8. 35%
Central Angle = % (360)
9. 50%

19. Pg 472 9 – 6 #1 – 11, 12 – 22 10. 30% 11. 1% Central Angle = % (360)
Find the measures of the central angles that you would draw to represent each percent in a circle graph. Round to the nearest degree. %
Central Angle = % (360)
11. 1%

20. Pg – 6 #1 – 11, 12 – 22