Components of Circles

What is the diameter of this circle?

• 3.5

• 3

• 5

• 7

What is the radius of this circle?

• 12cm

• 6cm

• 24cm

• 3cm

what is the area of this semicircle ?
d = 8 cm 

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

Find the area of the circle

• 56.52

• 254.34

• 1017.36

• 113.04

Name the pictured part of the circle.

• Diameter

• Sector

• Radius

• Central Angle

• Arc

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

• Point S

• Radius

• Chord

• Center

• Tangent Line

• Diameter

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

c

d

e

f

b

a

chord

tangent

diameter

radius

secant

center

Label each line or segment of the circle.

b

c

d

e

a

Diameter

Radius

Secant

Tangent

Chord

• chord

• secant

• diameter

• tangent

• radius

Which segment is the diameter?

c

CD

CE

BD