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Worksheets

Circle

Total questions: 77

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

Longest line of a circle

a)

Circumference

b)

Diameter

c)

Chord

2.

Diameter= --- x Radius

a)

1

b)

2

c)

3

d)

5

3.

---- is the length of a circle

a)

Circumference

b)

Radius

c)

Arc

4.

Which is the best thing to measure the length of a circle

a)

Pitcher

b)

Thread

c)

Scale

5.

Line which do not touch the center

a)

Arc

b)

Chord

c)

Semi circle

6.

what is a 7 sided polygon

a)

Heptagon

b)

Optagon

c)

Decogon

d)

Nanogon

7.

what is a arc

a)
b)
c)
8.

Quadrilateral is made up of -----------------

a)

Line Segment

b)

Curved Line

9.

10 Sided Polygon

a)

Octagon

b)

Decagon

c)

undecagon

10.

AN ANGLE IS FORMED WHEN --- --------- MEET AT A POINT

a)

RAY

b)

CURVED LINE

c)

LINE SEGMENT

11.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
12.
What is the diameter?
a)
8
b)
16
c)
10
d)
4
13.
What is the radius?
a)
18
b)
72
c)
38
d)
14
14.
What is the diameter?
a)
5 in
b)
10 in
c)
3.14 in
d)
15.84 in
15.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
16.
The distance from the center of the circle to any point on the circle is called the...
a)
radius
b)
diameter
c)
circumference
d)
area
17.
The distance all the way across the circle, but through the center, is called the...
a)
radius
b)
diameter
c)
circumference
d)
area
18.
A diameter is also a chord. 
a)
True
b)
False 
19.
A line segment connecting any two points on a circle is called a _____________. 
a)
diameter
b)
chord
c)
radius
d)
circumference 
20.
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
21.
What is AB?
a)
diameter
b)
center
c)
circumference
d)
radius
22.
What is CB?
a)
diameter
b)
center
c)
circumference
d)
radius
23.
What is C?
a)
diameter
b)
center
c)
circumference
d)
radius
24.
The distance across a circle through the center is called the_______________.
a)
radius
b)
circumference
c)
diameter
d)
area
25.
A line segment that joins two points on a curve is called_________________.
a)
radius
b)
chord
c)
diameter
d)
circumference
26.
A line segment that passes through the center of a circle, connecting two points on a circle is called ________________.
a)
diameter
b)
radius
c)
circumference
d)
area
27.
What is the radius if the diameter is 12 m ?
a)
24 m
b)
6 m
c)
4 m
d)
48 m
28.
What is the radius if the diameter is 40 m ?
a)
80
b)
20
c)
8
29.
What is the radius if the diameter is 10 m ?
a)
5
b)
20
c)
2
30.
What is the radius if the diameter is 16 m ?
a)
32
b)
8
31.
What is the radius if the diameter is 80 m ?
a)
40
b)
160
32.
What is the diameter of a circle with a radius of 10 in?
a)
20
b)
5
c)
40
33.
What is the diameter of a circle with a radius of 8 in?
a)
4 in
b)
16 in
c)
32 in
34.
What is the diameter of a circle with a radius of 8 in?
a)
16
b)
4
c)
24
d)
2
35.
What is the diameter of a circle with radius 15m?
a)
15m
b)
30m
c)
7.5m
d)
225m
36.
If the diameter of a circle is 10 cm, the radius is 5 cm.
a)
TRUE
b)
FALSE
37.
If the diameter of a circle is 24 ft, the radius is 48 ft.
a)
TRUE
b)
FALSE
38.

Name the part shown in the given circle.

a)

Radius

b)

Tangent

c)

Circumference

d)

Segment

39.

Name the part shown in the given circle.

a)

Sector

b)

Chord

c)

Segment

d)

Circumference

40.

Name the part shown in the given circle.

a)

Diameter

b)

Segment

c)

Circumference

d)

Radius

41.

Name the part shown in the given circle.

a)

Chord

b)

Radius

c)

Tangent

d)

Segment

42.

Name the part shown in the given circle.

a)

Radius

b)

Chord

c)

Circumference

d)

Diameter

43.

What is the measurement around the outside of a circle called?

a)

Diameter

b)

Circumference

c)

Radius

d)

Center

44.

What is the line that goes from the center of a circle to any point on the circle?

a)

Diameter

b)

Circumference

c)

Chord

d)

Radius

45.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
46.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
47.
Is the red line a radius or diameter of the circle?
a)
Radius
b)
Diameter
48.
What is the diameter?
a)
5 in
b)
10 in
c)
3.14 in
d)
15.84 in
49.

Does this picture show the diameter or radius of a circle?

a)

Diameter

b)

Radius

50.

What is the point that is an equal distance from all the points on a circle? (this is where your finger holds the compass)

a)

Diameter

b)

Circumference

c)

Center

d)

Chord

51.

What is a straight line that goes through the center of a circle from side to opposite side?

a)

Diameter

b)

Circumference

c)

Radius

d)

Center

52.

What is the line that goes from the center of a circle to any point on the circle?

a)

Diameter

b)

Circumference

c)

Chord

d)

Radius

53.

What is this symbol called?

a)

pi

b)

sigma

c)

radius

d)

omega

54.

What is the approximate numerical value of this sign?

a)

3.11

b)

3.14

c)

4.13

d)

6.28

55.

What is the actual definition of this sign?

a)

It's the line going across the circle and going through the center

b)

It's the line going from the center to the edge of a circle

c)

It's the ratio of the circumference to the diameter of a circle.

d)

It's any line that goes through the circle but doesn't go through the middle.

56.
What is twice as long as a radius
a)
Center
b)
Diameter
c)
Tanget
d)
Arc
57.
An arc is a smaller piece of the
a)
Chord
b)
Center
c)
Circumference
d)
Radius
58.
A line segment that connects two points in a circle without passing through the centre
a)
Radius
b)
Sector
c)
Segment
d)
Chord
59.
If the diameter of a circle is 10 cm, the radius is 5 cm.
a)
TRUE
b)
FALSE
60.
What do we call the red line?
a)
Chord
b)
Arc
c)
Diameter
d)
Segment
61.
What is the diameter of a circle with a radius of 8 in?
a)
4 in
b)
16 in
c)
32 in
62.
If the radius of a circle is 10 cm, the circumference is about 30 cm.
a)
TRUE
b)
FALSE
63.

What does the line segment on the circle represent?

a)

the radius

b)

the diameter

c)

the circumference

64.

What does the line segment on the circle represent?

a)

the radius

b)

the diameter

c)

the circumference

65.

What part of a circle does the red line represent?

a)

the radius

b)

the diameter

c)

the circumference

66.

What is the length around a circle called?

a)

the radius

b)

the diameter

c)

the circumference

67.

What part of a circle does the red line represent?

a)

the radius

b)

the diameter

c)

the circumference

68.

What does the line segment on the circle represent?

a)

the radius

b)

the diameter

c)

the circumference

69.

What does the line segment on the circle represent?

a)

the radius

b)

the diameter

c)

the circumference

70.

What is a segment with its endpoints on the circle that passes through the center called?

a)

the radius

b)

the diameter

c)

the circumference

71.

What is a line segment from the center of a circle to any point on the circle?

a)

the radius

b)

the diameter

c)

the circumference

72.

What does this symbol represent?

a)

circle

b)

pi

c)

radius

73.

What number do we round pi to?

a)

3

b)

3.1

c)

314

d)

3.14

74.

What part of a circle does the red line represent?

a)

the radius

b)

the diameter

c)

the circumference

75.

What part of a circle does the red line represent?

a)

the radius

b)

the diameter

c)

the circumference

76.

What is the diameter divided by 2?

d2=?\frac{d}{2}=?  

a)

the circumference

b)

the radius

c)

the area

d)

pi

77.

What is the radius doubled (times 2)?

r×2=?r\times2=?  

a)

the diameter

b)

the radius

c)

the area

d)

pi

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