Notes Over 9 - 6 Circles

1
Notes Over 9 - 6
Circles
Parts of a Circle
Circumference
Radius
Diameter
Chord
2
Notes Over 9 - 6
Circles
Circumference p d
3.1
3
Notes Over 9 - 6
Circles
Circumference p d
5
4
Notes Over 9 - 6
Circles
Circumference p d
5
Notes Over 9 - 6
Circles
Circumference p d
1.7
6
Notes Over 9 - 6
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 9 - 6
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 9 - 6
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 9 - 6
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 9 - 6
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
seniors
juniors
11
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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?
A
C
Utilities?
D
Food?
E
Transportation?
B
Savings?
12
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Find the circumference of each circle with the
given radius or diameter.
Circumference p d
2. radius 3.5 cm
3.5
13
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Find the circumference of each circle with the
given radius or diameter.
Circumference p d
3. diameter 100 in
100
14
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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
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Find the circumference of each circle with the
given radius or diameter.
Circumference p d
5. diameter 0.1 m
0.1
16
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Find the circumference of each circle with the
given radius or diameter.
Circumference p d
6. radius 18 in
18
17
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Find the circumference of each circle with the
given radius or diameter.
Circumference p d
7. diameter 2 mi
2
18
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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
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Find the measures of the central angles that you
would draw to represent each percent in a circle
graph. Round to the nearest degree.
10. 30
Central Angle (360)
11. 1
20
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