9.1 Circles and Circumference

What is the green line called?

• Circle

• Radius

• Diameter

• Circumference

What is the blue line called?

• Circle

• Radius

• Diameter

• Circumference

The distance around the perimeter of a circle is called

• Circle

• Radius

• Diameter

• Circumference

The radius is ____ the diameter

• half

• double

• one third of

• bigger than

Tags

CCSS.HSG.C.A.2

The diameter of a soccer ball is 8.6 inches. What is the radius?

• 4.3 inches

• 8.6 inches

• 17.2 inches

Tags

CCSS.7.G.B.4

The radius of a bowling ball is 4.25 inches. What is the diameter?

• 8.5 inches

• 4.25 inches

• 12.75 inches

Tags

CCSS.7.G.B.4

 $\pi$  (Pi) is approximately...

• 3.14

• 6.28

• 1.57

• Cherry flavored

Tags

CCSS.HSG.GMD.A.1

The length of the second hand on a clock is 5 inches.

What part of a circle does the statement describe?

• area

• radius

• circumference

• diameter

Tags

CCSS.HSG.C.A.2

The tires on a monster truck are 6 feet tall.

What part of a circle does the statement describe?

• area

• radius

• circumference

• diameter

Tags

CCSS.HSG.C.A.2

The fence around a circular pool is 75 feet.

What part of a circle does the statement describe?

• area

• radius

• circumference

• diameter