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Circle #1 Quiz

Total questions: 45

Worksheet time: 41mins

Name
Class
Date
1.

The distance from the center to any point on a circle.

a)

Radius

b)

Diameter

c)

Circumference

d)

Chord

2.

The distance across a circle through its center.

a)

Arc

b)

Diameter

c)

Circumference

d)

Pi

3.
What is the name for the distance around a circle?
a)
Diameter
b)
Radius
c)
Circumference
d)
Chord
4.
What is twice as long as a radius
a)
Center
b)
Diameter
c)
Tanget
d)
Arc
5.
What is half the size of a diameter
a)
Radius
b)
Chord
c)
Arc
d)
Center
6.

What is line AB called?

a)

diameter

b)

radius

c)

chord

d)

tangent

7.
What is the name of the perimeter of a circle?
a)
Perimeter
b)
Gerald
c)
Circumference
d)
Diameter
8.
If my radius is 10ft, what is my diameter?
a)
20ft
b)
5ft
c)
31.4ft
d)
62.8ft
9.
If my diameter is 19 inches, what is my radius?
a)
38 inches
b)
9.5 inches
c)
59.66 inches
d)
119.32 inches
10.
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. 
11.

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

12.
What is the diameter?
a)
8
b)
16
c)
10
d)
4
13.
Does this picture show the diameter or radius of a circle?
a)
Diameter
b)
Radius
14.
How long is the radius of this circle?
a)
4cm
b)
2cm
c)
8cm
d)
16cm
15.
What is the definition of a radius of a circle.
a)
A line segment from the centre of a circle to the circumference.
b)
The perimeter of a circle.
c)
A line segment joining two points on the circumference of a circle, that goes through the centre of the circle.
d)
A line segment joining two point on the circumference. 
16.
what is the circumference of this circle ?
a)
3.14 cm 
b)
37.68 cm
c)
24 cm
d)
68.4 cm
17.

Calculate the CIRCUMFERENCE of this circle

a)

12.56

b)

11.1

c)

25.1

18.

Calculate the area of this quadrilateral.

a)

16

b)

12

c)

8

19.

Draw a circle with a radius of 2.4 cm. What is the diameter?

a)

2.4 cm

b)

4.8 cm

c)

5.76 CM

20.
What is the definition of pi?
a)
The ratio of a circle's circumference to its diameter
b)
The ratio of a circle's radius to its diameter
c)
The ratio of a circle's area to its diameter
d)
The ratio of a circle's circumference to its are
21.
"The set of all points in a plane an equal distance from a fixed  point"
a)
Bisector
b)
Angle
c)
Circle
d)
Parallel
22.
What is the decimal approximation for the value of pi, correct to two decimal places?
a)
22,7
b)
2,27
c)
3,14
d)
3,16
23.
The radius of a circle is 3 cm.  What is the circle's diameter?
a)
9.4 cm
b)
6 cm
c)
18.8 cm
24.
What does this symbol represent?
a)
a letter from the English alphabet
b)
a greek letter
c)
pie
d)
pi
25.
What is pi used to find? 
a)
the perimeter of a square
b)
the area of a rectangle
c)
radius of a circle
d)
circumference of a circle
26.
How many digits are in pi?
a)
10 trillion
b)
5 billion 
c)
infinite 
d)
a lot 
27.
What is the "formal" definition of pi?
a)
22/7
b)
3.1415926
c)
the ratio of a circle's circumference to its diameter
d)
the surface area of a sphere of diameter 22/7
28.

This formula is used to find what?

a)

Circumference

b)

Area

29.

If the radius of a circle is 6, what is the circumference?

a)

24π

b)

36π

c)

6π

d)

12π

30.

What is the circumference of a circle with diameter 8

a)

8π

b)

64π

c)

4π

d)

16π

31.
If my radius is 10ft, what is my diameter?
a)
20ft
b)
5ft
c)
31.4ft
d)
62.8ft
32.
What is the formula for circumference of a circle given the diameter?
a)
C = pi x r
b)
C = pi x 2r
c)
C = pi x D
d)
C = pi x 2D
33.
What is the formula for circumference of a circle given the radius?
a)
C = pi x r
b)
C = pi x 2r
c)
C = pi x D
d)
C = pi x 2D
34.
What is the diameter?
a)
5 in
b)
10 in
c)
3.14 in
d)
15.84 in
35.
What is the radius of this circle?
a)
18
b)
72
c)
38
d)
14
36.
The distance around a circle; much like the perimeter of a rectangle.
a)
perimeter
b)
diameter
c)
circumference
d)
radius
37.
A DVD has a diameter of 15 millimeters.
Which equation would help you determine the circumference?
a)
c = 15π
b)
C = 2π15
c)
c = 15/π
d)
c = 15/2π
38.
If you are given the diameter, how can you calculate the radius?
a)
Multiply the diameter by 2
b)
Divide the diameter by 2
c)
Add 2 to the diameter
d)
Subtract 2 from the diameter
39.

Which of these is an example of finding circumference?

a)

You must find the distance around a basketball hoop.

b)

You must find the distance around a Ferris wheel.

c)

You must find the distance around a bicycle tire.

d)

All of these are examples of finding circumference.

40.

Area is...

a)

the space inside of a circle

b)

the distance around the outside of a circle.

c)

is labelled with a C=

d)

None of these..

41.
What is the formula for circumference of a circle given the diameter?
a)
C = π r
b)
C = 2 π r
c)
C = π d
d)
C = 2 π d
42.
If the circumference of a circle is 22 π ft, what is the radius?
a)
22 ft
b)
11ft
c)
π ft
d)
no ft
43.
The _____ is the distance from the center to any point on the circle.
a)
diameter
b)
radius
c)
π
d)
center
44.
The distance across a circle through its center is called the _____.
a)
diameter
b)
radius
c)
π
d)
center
45.
What does "circumference" mean?
a)
Space a circle takes up
b)
Distance around a circle
c)
Line from one side of a circle to another
d)
Line from center of circle to side

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