Parts of a Circle

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

What is the diameter?

• 8

• 16

• 10

• 4

What is the radius?

• 18

• 72

• 38

• 14

Is the red line a radius or diameter of the circle?

• Radius

• Diameter

Label each line or segment of the circle.

b

c

d

e

a

Tangent

Diameter

Secant

Radius

Chord

Label the name of part os the circles.

c

d

e

f

g

h

i

b

a

sector

chord

radius

circumference

tangent

segment

center

diameter

secant

Label the circle.

d

e

f

a

Secant

Tangent

Minor Arc

Chord

Diameter

Radius

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

• Tangent Line

• Center

• Chord

• Point S

• Radius

• Diameter

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

c

d

e

f

b

a

secant

radius

diameter

center

chord

tangent

Match the line segment to the correct part of a circle

• Diameter

• LM

• Radius

• JH

• Chord

• JG