Parts of a Circle

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

• 10 in

• 2.5 in

• 15.7 in

• 31.4 in 

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?

• 37.68 inches

• 3 inches

• 12 inches

• 376.8 inches

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?

• 16 feet

• 25.12 feet

• 251.2 feet

• 4 feet

What is the radius of this circle?

• 18

• 36

• 9

• 8

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

c

d

e

f

b

a

radius

chord

secant

tangent

center

diameter

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

• Diameter

• Tangent Line

• Chord

• Center

• Point S

• Radius

Name the pictured part of the circle.

• Diameter

• Sector

• Radius

• Central Angle

• Arc

Label the name of part os the circles.

c

d

e

f

g

h

i

b

a

diameter

sector

radius

tangent

segment

chord

secant

center

circumference

Label the circle.

d

e

f

a

Chord

Tangent

Minor Arc

Radius

Secant

Diameter

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

• Point of Tangency

• 
• Center

• 
• Tangent

• 
• Chord

•