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

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Presentation on theme: "Notes Over 9 - 6 Circles Parts of a Circle Diameter Radius Chord Circumference."— Presentation transcript:

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2 Notes Over Circles Parts of a Circle Diameter Radius Chord Circumference

3 Notes Over Circles Circumference =  d 3.1

4 Notes Over Circles Circumference =  d 5

5 Notes Over Circles Circumference =  d

6 Notes Over Circles Circumference =  d 1.7

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.

11 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. freshman sophomores juniors seniors

12 Pg – 6 #1 – 11, 12 – 22 Use the graph at the right. 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? Utilities? Food? Transportation? A B C D E Savings? A C D E B

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

14 Pg – 6 #1 – 11, 12 – 22 Find the circumference of each circle with the given radius or diameter. 3. diameter = 100 in Circumference =  d 100

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

16 Pg – 6 #1 – 11, 12 – 22 Find the circumference of each circle with the given radius or diameter. 5. diameter = 0.1 m Circumference =  d 0.1

17 Pg – 6 #1 – 11, 12 – 22 Find the circumference of each circle with the given radius or diameter. 6. radius = 18 in Circumference =  d 18

18 Pg – 6 #1 – 11, 12 – 22 Find the circumference of each circle with the given radius or diameter. 7. diameter = 2 mi Circumference =  d 2

19 Pg – 6 #1 – 11, 12 – 22 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) 9. 50%

20 Pg – 6 #1 – 11, 12 – 22 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%

21 Pg – 6 #1 – 11, 12 – 22


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