Free Printable Parts of a Circle

1.

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the distance around the cookie?

a)

10 in

b)

2.5 in

c)

15.7 in

d)

31.4 in

2.

Tom measured his frisbee from the center to the outside and found it to be 6 inches. What is the approximate circumference of Tom's frisbee?

a)

37.68 inches

b)

3 inches

c)

12 inches

d)

376.8 inches

3.

Meg swam from one side of her circular pool to the other side going through the center. If Meg swam 8 feet, what is the approximate circumference of Meg's pool?

a)

16 feet

b)

25.12 feet

c)

251.2 feet

d)

4 feet

4.

What is the radius of this circle?

a)

18

b)

36

c)

9

d)

8

5.

Drag and Drop: Match the correct parts of a circle.

a)

center

b)

tangent

c)

chord

d)

diameter

e)

secant

f)

radius

1

2

3

4

5

6

1)

2)

3)

4)

5)

6)

6.

Match the following part of the circle with its correct label.

a)

Center

1.

Point S

b)

Chord

2.

Segment XW $\overline{XW}$

c)

Radius

3.

$\overline{ST}$

Segment ST

d)

Diameter

4.

$\overline{QV}$

Segment QV

e)

Tangent Line

5.

$\overline{VU}$

Line VU

7.

Name the pictured part of the circle.

a)

Diameter

b)

Sector

c)

Radius

d)

Central Angle

e)

Arc

8.

Label the name of part os the circles.

a)

secant

b)

circumference

c)

segment

d)

sector

e)

chord

f)

center

g)

diameter

h)

radius

i)

tangent

1

2

3

4

5

6

7

8

9

1)

2)

3)

4)

5)

6)

7)

8)

9)

9.

Label the circle.

a)

Diameter

b)

Minor Arc

c)

Secant

d)

Tangent

e)

Chord

f)

Radius

1

2

3

4

1)

2)

3)

4)

10.

Match the part of the circle with the term that best describes it.

a)

1.

Point of Tangency

b)

2.

Center

c)

3.

Chord

d)

4.

Tangent

11.

Tell whether the line or segment is best described as a chord, a secant, a diameter, a tangent, or a radius.

$\overline{PZ}$ (a)

line $PZ$ (b)

$\overline{RT}$ (c)

Choose from the below words

chord

secant

diameter

tangent

radius

12.

Match the line segment to the correct part of a circle

a)

JG

1.

Radius

b)

LM

2.

Chord

c)

JH

3.

Diameter

13.

What do we call the red line?
(a)

Choose from the below words

Chord

Arc

Diameter

Segment

14.

Which segment is a radius?

a)

LM

b)

DC

c)

BD

d)

ML

1

1)

15.

Label each line or segment of the circle.

a)

Tangent

b)

Radius

c)

Diameter

d)

Chord

e)

Secant

1

2

3

4

5

1)

2)

3)

4)

5)

16.

Which segment is the diameter?

a)

CE

b)

CD

c)

BD

1

1)

17.

Label the 4 lines shown on the circle. There may be trick guesses...

a)

Ulna

b)

Accord

c)

Diayard

d)

Cosine Line

e)

Sine Line

f)

Tangent Line

g)

Diameter

h)

Radius

i)

Chord

1

2

3

4

1)

2)

3)

4)

18.

Use picture to match the following

a)

Red

Part of Circle

1.

Arc

b)

Teal

Part of Circle

2.

Radius

c)

Purple

Part of Circle

3.

Diameter

d)

Blue

Part of Circle

4.

Chord

e)

Pink

Part of Circle

5.

Tangent

19.

Select each Radius in the image.

a)

$\overline{DA}$

b)

$\overline{DB}$

c)

$\overline{DC}$

d)

$\overline{BD}$

e)

$\overline{AC}$

20.

A chord that passes through the center of the circle is called the...

a)

Radius

b)

Diameter

c)

Arc

d)

circumference

Parts of a Circle

Total questions: 20

Worksheet time: 20mins

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