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circunferencia and area of a circle

Total questions: 27

Worksheet time: 7hrs 45mins

Name
Class
Date
1.

MUST DO: Elsie bought a circular rug that is 9 feet in diameter. What is the circumference of the rug rounded to the nearest tenth of a foot?

a)

4.5 feet

b)

14.1 feet

c)

28.3 feet

d)

56.5 feet

2.

MUST DO: What is the approximate area of the circle above?

a)

44 inches squared

b)

154 inches squared

c)

616 inches squared

3.

MUST DO: The radius of a circle is 12 cm. What is the approximate circumference of the circle?

a)

75 cm

b)

38 cm

c)

24 cm

4.

MUST DO: The diameter of a circle is 8 cm. What is the approximate area of the circle?

a)

25 cm squared

b)

50 cm squared

c)

201 cm squared

5.

MUST DO: A flower pot has a circumference of 35 inches. What is the approximate length of the radius of the flower pot?

a)

3.3 inches

b)

5.6 inches

c)

6.8 inches

d)

11.1 inches

6.

MAY DO: A circular track with a diameter of 60 meters is shown. Shaleah walked around the track 4 times. Approximately how many meters did she walk?

a)

377

b)

2826

c)

754

d)

11,304

7.

MAY DO: Sadie has 38 inches of fringe to sew around a circular pillow. What is the approximate diameter of the largest pillow she can use?

a)

6 inches

b)

9 inches

c)

10 inches

d)

12 inches

8.

MAY DO: The circumference of a circle is 188 meters. What is the approximate radius of the circle?

a)

128 meters

b)

94 meters

c)

60 meters

d)

30 meters

9.

ENRICHMENT: Rocky has a choice between 2 pizzas: a circular pizza with a 10-inch diameter, and a square pizza with a 9-inch side. Which statement below is true?

a)

The pizzas have the same area.

b)

The area of the square pizza is larger.

c)

The area of the circular pizza is larger.

d)

The area of the circular pizza is 100 square inches.

10.
If my radius is 10ft, what is my diameter?
a)
20ft
b)
5ft
c)
31.4ft
d)
62.8ft
11.
what is the circumference of this circle ?
a)
3.14 cm 
b)
37.68 cm
c)
24 cm
d)
68.4 cm
12.
A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?
a)
10.5 ft
b)
42 ft
c)
65.94 ft
d)
131.95 ft
13.
What is the distance around a circle?
a)
Circumference
b)
Area
c)
Diameter
d)
Radius
14.
The diameter of a circle is:
a)
The measurement around the circle.
b)
The distance from an edge of a circle to another edge.
c)
The distance from the center of the circle to an edge of a circle
d)
The distance from an edge of a circle to another edge through the center. 
15.
The circumference of a circle is
a)
The measurement from an edge of a circle to another edge.
b)
The measurement around the circle
c)
The measurement from an edge of a circle to another edge going through the center
d)
The measurement from the center of the circle to an edge of the circle
16.

The diameter of a circle is 3 centimeters. What is the circumference?

a)

11.5cm

b)

9.42 cm

c)

unicorns are narwahls

d)

45.3 cm

17.
What is the diameter?
a)
8
b)
16
c)
10
d)
4
18.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
19.
What is the radius of this circle?
a)
18in
b)
36in
c)
9in
d)
8in
20.
A ball has a circumference of 9.42 cm. What is the diameter?
a)
29.5788 cm
b)
59.1576 cm
c)
3 cm
d)
1.5 cm
21.
What is the diameter?
a)
8cm
b)
16cm
c)
10cm
d)
4cm
22.

A cruise ship has a large, circular window. It has a diameter of 6 meters. How many square meters of glass is the window made of?

a)

31.25 m2

b)

29.55 m2

c)

30.36 m2

d)

28.27 m2

23.
Find the radius of a circle if the area is 201.1 mi2
a)
10 mi
b)
8mi
c)
20 mi
d)
5mi
24.

The radius of a circle is 6.5 inches.

Find the circumference of the circle.

a)

132.7 in

b)

40.8 in

c)

20.4 in

d)

572.3 in

25.

What is the area of this circle?

a)

50.27 cm2

b)

78.23 cm2

c)

98.12 cm2

d)

201.06 cm2

26.
What is the area of a circle with a diameter of 12cm?
a)
452.39cm2
b)
139.12cm2
c)
113.1cm2
d)
84.23cm2
27.
The homeowners association wants to enclose a circular playground in a fence. The need to find the amount of fencing they need to purchase.  Will they need the area or circumference of the playground?
a)
area
b)
circumference
c)
neither

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