Circles and Arcs

If the area of a circle is 25 π in² , then the diameter is?

• 10 in

• 5 in

• 25 in

• pi in

If the circumference of a circle is 22 π ft, what is the radius?

• 22 ft

• 11ft

• π ft

• no ft

If the circumference of a circle is 22π , what is the diameter?

• 22 ft

• 11 ft

• π ft

• 0 ft

If the circumference of a circle is 44 π feet, what is the radius?

• 22 ft

• 44 ft

• 33 feet

• 3.14 feet

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

c

d

e

f

b

a

diameter

radius

chord

center

tangent

secant

Label the image with the correct terminology

b

a

Minor Arc

Semicircle

Major Arc

Match the term to the correct image.

d

e

f

b

a

c

g

arc

secant

semicircle

radius

tangent

diameter

chord

A group of students created a circle during a game. The circumference of the circle was about 78.5 feet, and the diameter of the circle was 25 feet. Label the ratio that best represents the value of pi.

a

b

25

78.5

Drag and drop the vocabulary terms on the diagram.

a

b

c

d

chord

center

radius

arc

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

• diameter

• radius

• π

• center