Parts of a Circle

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

• Radius

• Diameter

Tags

CCSS.HSG.C.A.2

Name the pictured part of the circle.

• Radius

• Central Angle

• Diameter

• Center

• Arc

Name the pictured part of the circle.

• Center

• Diameter

• Radius

• Arc

What is the diameter?

• 8

• 16

• 10

• 4

Tags

CCSS.7.G.B.4

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

• Point S

• Diameter

• Radius

• Tangent Line

• Chord

• Center

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

circumference

diameter

radius

secant

tangent

segment

chord

center

sector

Label each line or segment of the circle.

b

c

d

e

a

Diameter

Secant

Chord

Radius

Tangent

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

c

d

e

f

b

a

secant

diameter

tangent

center

radius

chord

What do we call the red line?
(a)  

• Chord

• Arc

• Diameter

• Segment