Parts of a Circle Vocabulary

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

• Radius

• Diameter

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

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

• Radius

• Diameter

The distance from the center of the circle to any point on the circle is called the...

• radius

• diameter

• circumference

• area

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

c

d

e

f

b

a

radius

chord

diameter

center

tangent

secant

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

• Radius

• Chord

• Center

• Point S

• Tangent Line

• Diameter

Which segment is the diameter?

c

CD

BD

CE

Label each line or segment of the circle.

b

c

d

e

a

Diameter

Tangent

Secant

Radius

Chord

Label the circle.

d

e

f

a

Secant

Radius

Diameter

Chord

Tangent

Minor Arc

• chord

• secant

• diameter

• tangent

• radius